压缩包目录
-
全部
- 201607040110.doc--点击预览
- 201607040111.doc--点击预览
- 201607040112.doc--点击预览
- 201607040113.doc--点击预览
- 201607040114.doc--点击预览
- 201607040115.doc--点击预览
- 20160704018.doc--点击预览
- 20160704019.doc--点击预览
文件预览区
|
|
资源描述
1河南省西平县高级中学 2015-2016 学年高一历史 6 月月考试题(扫描版)2345671河南省西平县高级中学 2015-2016 学年高一生物 6 月月考试题(扫描版)2345671西平高中高一第五次月考物理试题满分:100 分 时间:90 分钟 一、选择题(1-12 题是单选题,13-15 是多选题.每小题 3 分,共 45 分,少选得 2 分,错选不得分. )1.在力学理论建立的过程中,有 许多伟大的科学家做出了贡献.关于科学家和他们的贡献,下列说法中不正确的是( )A.伽利略首先将实验事实和逻辑推理(包括数学推演)和谐地结合起来B.笛卡尔对牛顿第一定律的建立做出了贡献C.牛顿总结出了万有引力定律并用实验测出了引力常量D.开普勒通过研究行星观测记录,发现了行星运动三大定律2.地球的第一宇宙速度约为 8km/s,某行星的质量是地球的 6 倍,半径是地球的 1.5 倍.该行星上的第一宇宙速度约为( )A.2km/s B.32km/s C.46km/s D.16km/s3.有 a、b、c、d 四颗地球卫星,a 还未发射,在赤道表面上随地球一起转动,b 是近地轨道卫星,c 是地球同步卫星,d 是高空探测卫星,它 们均做匀速圆周运动,各卫星排列位置如图所示,则( )A.在相同时间内 b 转过的弧长最长B.a 的向心加速度等于重力加速度 gC.c 在 4 小时内转过的圆心角是D.d 的运动周期有可能是 20 小时4.火星和地球绕太阳运行 的轨道可近似视为圆形,若已知火星和地球绕太阳运行的周期之比,则由此可求得( )A.火星和地球受到太阳的万有引力之比 B.火星和地球的第一宇宙速度之比C.火星和地球表面的重力加速度之比 D.火星和地球绕太阳运行速度大小之比5.一滑块在水平地面上沿直线滑行,t=0 时其速度为 1m/s.从此刻开始滑块运动方向上再施加一水平面作用 F,力 F 和滑块的速度 v 随时间的变 化规律分别如图 a 和图 b 所示.设在第 1 秒内、第2 秒内、第 3 秒内力 F 对滑块做的功分别为W1、W2、W3,则以下关系正确的是( )A.W1=W2=W3 B.W1<W3<W2C.W1<W2<W3 D.W1=W2<W36.有一个固定的光滑直杆与水平面的夹角为 53°,杆上套着一个质量为 m=2kg 的滑块(可视为质点) .用不可伸长的细绳将滑块 m 与另一个质量为 M=2.7kg 的物块通过 光滑的定滑轮相连接,细绳因悬挂 M 而绷紧,此时滑轮左侧细绳恰好水平,其长度 L=10/3 米,p 点与滑轮的连线与直杆垂直(如图所示) .现将滑块 m 从图中 O 点由静止释放, (整个运动过 程中 M不会触地,g=10m/s2) .则滑块 m 滑至 P 点时的速度大小为( )A.2m/s B.5m/s C. m/s D. 5 m/s7.用细线拴着一个小球,在光滑水平面上作匀速圆周运动,有下 列说法2①小球线速度大小一定时,线越长越容易断 ②小球线速度大小一定时,线越短越容易断③小球角速度一定时,线越长越容易断 ④小球角速度一定时,线越短越容易断其中正确的是( )A.①③ B.①④ C. ②③ D.②④8.一轻杆一端固定质量为 m 的小球,以另一端 O 为圆心,使小球在竖直面内做半径为 R 的圆周运动,如图所示,则下列说法正确的是( )A.小球过最高点的最小速度是B.小球过最高点时,杆所受到的弹力可以等于零C.小球过最高点时,杆对球的作用力一定随速度增大而增大D.小球过最高点时,杆对球的作用力一定随速度增大而减小9.如图所示为质点做匀变速曲线运动轨迹的示意图,且质点运动到 D 点时速度方向与加速度方向恰好互相垂直,则质点从 A 点运动到 E 点的过程中,下列说法中 正确的是( )A.质 点经过 C 点的速率比 D 点的大B.质点经过 A 点时的加速度方向与速度方向的夹角小于 90°C.质点经过 D 点时的加速度比 B 点的大D.质点从 B 到 E 的过程中加速度方向与速度方向的夹角先增大后减小10.如图所示,b 点位于斜面底端 P 点的正上方,并与斜面顶端 a 点等高且高度为 h,今在 a、b 两点分别以速度 va 和 vb 沿水平方向抛出两个小球 A、B(可视为质点).若 A 球恰好落到 P 点的同时,B 球也恰好落到斜面的中点 q.不计空气阻力,则( )A.va=vb B.va= vb2C.A、B 两球同时抛出 D.A 球提前( -1) 秒先抛出22hg11.如图 所示,两个质量相同的小球 A、B 固定在一轻杆的两端,绕一 固定转轴 O 从水平位置由静止释放,当杆到达竖直位置时,设杆对 A 做 功为 W,B 球机械能的变化量 ΔE,则( )A.W0,ΔE0 C.W0,ΔE0 D. W=0,ΔE=012.如图所示,AB、AC 两光滑细杆组成的直角支架固定在竖直平面内,AB 与水平面的夹角为 30°,两细杆上分别套有带孔的 a、b 两小球,在细线作用下处于静止状态,细线恰好水平.某时刻剪断细线,在两球下滑到底端的过程中,下列结论中正确的是 ( )A.a、b 两球到底端时速度相同 B.a、b 两球重力做功相同C.小球 a 下滑的时间大于小球 b 下滑的时间D.小球 a 受到的弹力小于小球 b 受到的弹力13.如图所示,粗糙水平圆盘上,质量相等的 A、B 两物块叠 放在一起,随圆盘一起做匀速圆周运动,则下列说法正确的是( )A.B 的向心力是 A 的向心力的 2 倍B. A、B 都有沿半径向外滑动的趋势3C.B 对 A 的摩擦力是盘对 B 的摩擦力的 2 倍D.若 B 先滑动,则 B 对 A 的动摩擦因数 μA 大于盘对 B 的动摩擦因数 μB14. “探路者”号宇宙飞船在宇宙深处飞行过程中,发现 A、B 两颗均匀球形天体,两天体各有一颗靠近其表面飞行的卫星,测得两颗卫星的周期相等,以下判断正确的是( )A.天体 A、B 的质量与它们的半径成正比 B.天体 A、B 表面的 重力加速度一定相等C.两颗卫星的线速度与它们的半径成正比 D.天体 A、B 的密度一定相等15. 一质量为 2 kg 的物体,在水平恒定拉力的作用下以 6 m/s 的初速度在粗糙的水平面上做匀速运动,当运动一段时间后,拉力逐渐减小,且当拉力减小到零 时,物体刚好停止运动,图中给出了拉力随位移变化的关系图 象.已知重力加速度 g=10 m/s2,由此可知( )A.物体与水平面间的动摩擦因数为 0.35B.减速过程物体的加速度逐渐减小C.减速过程中物体克服摩擦力所做的功为 49 JD.减速过程中拉力对物体所做的功为 13 J二、实验题(每空 3 分,共 12 分)16.某校科技活动开展了关于平抛运动的研究学习。 (1)学习小组甲为了探究影响平抛运动水平射程的因素,某同学通过改变抛出点的高度及初速度的方法做了 6 次实验,实验数据记录如下表。序号 抛出点的高度(m)水平初速度(m/s)水平射程(m)1 0.20 2.0 0.402 0.20 3.0 0.603 0.20 4.0 0.804 0.45 2.0 0.605 0.45 4.0 1.206 0.80 2.0 0.80①若探究水平射程与初速度的关系,可用表中序号为 的三组实验数据进行分析。②若探究水平射程与高度的关系,可用表中序号为 的三组实验数据进行分析。③学习小组乙在探究平抛运动的规律实验时,将小球做平抛运动,用频闪照相机对准方格背景照相,拍摄到了如下图所示的照片,已知每个小方格边长 9.8cm,当地的重力加速度为 g=9.8m/s2。若以拍摄的第一点为坐标原点,水平向右和竖直向下为正方向,则没有被拍摄到的小球位置坐标为 。 (单位:cm)④小球平抛的初速度大小为 m/s。二、解答题(共 43 分,需写出必要的文字说明、方程式和重要步骤,只写出最后答案的不能得分,有数值计算的题,答案中必须明确写出数值和单位。 )17. (13 分)如图甲所示,质量为 1 kg 的物体置于固定斜面上,现对物体施以平行于斜面向上的4拉力 F,1 s 后将拉力撤去,物体运动的 v – t 图象如图乙所示,试求:⑴ 拉力 F 的大小;⑵ 拉力 F 在第 1 s 内的平均功率.18. (14 分)一个探险队在探险时遇到一条山沟,山沟的一侧 OA 竖直,另一侧呈抛物线形状的坡面 OB 与一个平台 BC 相连,如图 D411 所示.已知山沟竖直一侧 OA 的高度为 2h,平台离沟底的高度为 h,,C 点离 OA 的水平距离为 2h.以沟底的 O 点为原点建立坐标系 xOy,坡面的抛物线方程为y= .质量为 m 的探险队员在山沟的竖直一侧从 A 点沿水平方向跳向平台.人 可视为质点,忽略x22h空气阻力,重力加速度为 g.(1)若探险队员从 A 点以速度 v0=8m/s,水平跳出时,掉在坡面 OB 的某处,则他在空中运动的时间为多少?(2)为了能跳在平台上,他在 A 点的初速度应满足什么条件?请计算说明.19. (16 分)如图,在水平轨道右侧固定半径为 R 的竖直圆槽形光滑轨道,水平轨道的 PQ 段铺设特殊材料,调节其初始长度为 l;水平轨道左侧有一轻质弹簧左端固定,弹簧处于自然伸长状态.可视为质点的小物块从轨道右侧 A 点以初速度 v0 冲上轨道,通过圆形轨道、水平轨道后压缩弹簧,并被弹簧以原速率弹回.已知 R=0.4m,l=2.5m,v0=6m/s,物块质量 m=1kg,与 PQ 段间的动摩擦因数 μ=0.4,轨道其他部分摩擦不计.取 g=10m/s2.求:(1)物块经过圆轨道最高点 B 时对轨道的压力;(2)物块从 Q 运动到 P 的时间及弹簧获得的最大弹性势能;(3)调节仍以 v0 从右侧冲上轨道,调节 PQ 段的长度 l,当 l 长度是多少时,物块恰能不脱离轨道返回 A 点继续向右运动.物理月考参考答案1.C 2 D 3A 4 D 5C 6 D 7 C 8B 9 C 10 B 11A 12C 13BD 14 CD 15 ACD16.① 1 2 3 ② 1 4 6 ③ (58.8cm,58.8cm) ④1.96m/s517、18 题、略19【解答】解:(1)对从初始位置到圆弧轨道的最高点过程,根据动能定理,有:﹣mg(2R)=在圆弧轨道的最高点,根据牛顿第二定律,有:mg+N=m联立解得:N=40N根据牛顿第三定律,物块经过圆轨道最高点 B 时对轨道的压力为 40N;(2)从 Q 到 P 过程,滑块的加速度为:a=﹣μg=﹣4m/s2;根据位移公式,有:x= ,代入数据解得:t=0.5s 或 t=2.5s(不可能速度减小为零后反向加速,故舍去)在 P 点的速度为:v2=v0+at=6﹣4×0.5=4m/s故最大弹性势能为:(3)物块恰能不脱离轨道返回 A 点,在圆轨道最高点的速度为:对从开始到第二次到圆轨道的最高点过程,根据动能定理,有:﹣mg(2R)﹣μmg•2l=解得:2l= = =3.8m故 l=1m1西平高中 2015-2016 学年下学期六月月考英语试题提示:本试卷满分 150 分 =(阅读 40+完形 30+语法填空 15+改错 10+作文 25)×1.25 分第Ⅰ卷第一部分 阅读理解(共两节,满分 40 分)第一节(共 15 小题; 每小题 2 分,满分 30 分)阅读下列短文,从所给题的四个选项中,选出最佳选项,用铅笔把答题卡上对应题目的答案标号涂黑。AI’m a real book lover. Every time my friends visit me, my nose is buried in a book. Wherever I go, I always have a book with me. Novels, history books, stories about people, journals and news—I read them all and I’ve learnt a lot, too. For example, many things in life happen for the best even if we don’t like or understand them.Why is reading such an enjoyable pastime for me? I probably first learned about it from my parents. My mother read to me at night in my childhood and bought me picture books. The greatest gift she has given me is a love for reading. And it will be a life-long habit.No one ever asked me why I liked to read. They just saw me and asked, “Oh? Is that for school work?” And I just shook my head, “No. It’s just for fun.” While reading a good book, I can totally forget myself and fly to another world. It’s like exploring through someone’s eyes, which is just as exciting as watching a movie.Reading is also necessary in order to learn about writing, to improve my use of words and phrases and broaden my knowledge. What a pity to see our imagination disappear, for we don’t exercise it often. Reading can even be good for one’s health, I think. Everyone should read sad stories that make us cry and also books with humor that make us laugh out loud!1. In the fourth paragraph, the author thinks reading can ____.A. make his parents happy B. improve writing and broaden knowledgeC. finish his school work D. help him understand some movies2. If we don’t use our imagination often, ____.A. it is bad for our health B. we will soon learn how to write C. it will soon disappear D. it will help us to have a good rest3. What does the passage mainly talk about?A. Why do I have few friends? B. What are my life habits?C. Why do things happen for the best? D. Why do I love reading?B2Do dogs understand us?Be careful what you say around your dog. It might understand more than you think.A border collie(边境牧羊犬)named Rico recognizes the names of about 200 objects, say researchers in Germany. The dog also appears to be able to learn new words as easily as a 3-year-old child. Its word-learning skills are as good as those of a parrot or chimpanzee(黑猩猩).In one experiment, the researchers took all 200 items that Rico is supposed to know and divided them into 20 groups of 10 objects. Then the owner told the dog to go and fetch one of the items and bring it back. In four tests, Rico got 37 out of 40 commands right. As the dog couldn't see anyone to get clues, the scientists believe Rico must understand the meanings of certain words.In another experiment, the scientists took one toy that Rico had never seen before and put it in a room with seven toys whose names the dog already knew. The owner then told Rico to fetch the object, using a word the dog had never heard before.The correct object was chosen in seven out of l0 tests, suggesting that the dog had worked out the answer by process of elimination (排除法). A month later, Rico remembered half of the new names, which is even more impressive. Rico is thought to be smarter than the average dog. For one thing, Rico is a border collie, a breed (品种)known for its mental abilities. In addition, the 9-year-old dog has been trained to fetch toys by their names since the age of nine months.It's hard to know if all dogs understand at least some of the words we say. Even if they do, they can't talk back. Still, it wouldn't hurt to sweet-talk your dog every now and then. You might just get a big, wet kiss in return!4. From paragraph 2 we know that __ .A. animals are as clever as human beingsB. chimpanzees have very good word-learning skillsC. dogs are smarter than parrots and chimpanzeesD. dogs have similar learning abilities as 3-year-old children5. Both experiments show that .A. Rico is smart enough to get all commands rightB. Rico has developed the ability of learning mathematicsC. Rico can recognize different things including toysD. Rico won't forget the names of objects once recognizing them6. Which of the following statements is true?A. The purpose of the experiments is to show the border collie's mental abilities.B. Rico has a better memory partly because of its proper early training.C. The border collie is world-famous for recognizing objects.D. Rico is born to understand its owner's commands.37. What does the writer want to tell us?A. To train your dog. B. To talk to your dog.C. To be careful with your dog. D. To be friendly to your dog.CHearst Castle is a palatial(宫殿式) park on the central California coast and a National Historic Landmark. It was designed by architect Julia Morgan for William Randolph Hearst from 1919 until 1947. In 1957, the Hearst Corporation donated the fortune to the state of California. Since that time it has been maintained as a state historic park where the estate and its considerable collection of art and antiques are open for public tours. In spite of its location far from any urban center, the site attracts roughly one million visitors every year.Guided ToursThere are several tours which highlight various parts of the castle and gardens. Tour One is recommended for first time visitor. It now includes the movie, Hearst Castle Building the Dream. Tour Two gives visitors a closer look at the main house's upper floors, Mr. Hearst's private suite(套房), the libraries, and the kitchen. Tour Three looks at the Castle's North Wing, guest rooms and guest house Casa Del Monte. Tour Four features the impressive gardens and grounds, the largest guesthouse, the wine basement, and the Hidden Terrace. The evening tour is a special tour that allows visitors to experience the Castle at night as one of the Hearst's own visitors might have.Ticket PricesHearst Castle accepts VISA, MasterCard, American Express and Discover. Free day use parking is available for automobiles(汽车) , motorcycles, tour buses and recreational vehicles(游艺汽车).TOURS ADULT Ages 6-17Experience Tour $ 24 $ 12Tours 2, 3 or 4 $ 24 $12Evening tour $30 $15* Children under 6 are free when accompanied by a paying adult.Reservation InformationWhile tickets may be purchased at the Visitor Center upon arrival, tour reservations (预约)are strongly recommended and may be reserved online now or by calling 1-800-444-4445, see below for time.Reservation Call Center HoursDates Monday-Friday Saturday-Sunday4March-September 8AM. to 6PM. 8AM. to 6PM.October-February 9AM. to 5PM. 9AM. to 3PM.Visit www. Hearst castle. org for more information.8. Who does the Hearst Castle belong to at present?A. William Randolph Hearst. B. Julia Morgan.C. The state of California. D. The Hearst Corporation.9. If a young couple take Tour One with their 5-year-old son, how much will they pay for the tickets?A. $36. B. $48. C. $60. D. $75.10. Which of the following is the available time to book tickets by phone?A. At 8 AM on Monday in February. B. At 7 PM on Friday in September. C. At 9 AM on Sunday in March. D. At 6 PM on Saturday in October.11. What is the purpose of the passage?A. To introduce Hearst Castle. B. To attract visitors to Hearst Castle. C. To introduce California's scenery. D. To introduce Hearst Castle’ scenery.D“Our aim is to take our art to the world and make people understand what it is to move,” said David Belle, the founder of parkour (also called free running-a kind of extreme sport).Do you love running? It is a good exercise, yet many people find it boring. But what if making your morning jog a creative one? Like jumping from walls and over gaps and ground rolls? Just like the James Bond in the movie Casino Royale? Bond jumps down from a roof to a windowsill and then runs several blocks over obstacles on the way. It is just because of Bond’s wonderful performances that the sport has become popular worldwide.Yes, that's parkour, an extreme street sport aimed at moving from one point to another as quickly as possible, getting over all the obstacles in the path using only the abilities of the human body. Parkour is considered an extreme sport. As its participants dash around a city, they may jump over fences, run up walls and even move from rooftop to rooftop.Parkour can be just as exciting and charming as it sounds,but its participants see parkour much more than that.Overcoming all the obstacles on the course and in life is part of the philosophy (理念) behind parkour. This is the same as life. You must determine your destination, go straight, and jump over all the barriers as if in parkour and never fall back from 5them in your life, to reach the destination successfully. A parkour lover said, “I love parkour because its philosophy has become my life, my way to do everything.”Another philosophy we've learnt from parkour is freedom. It can be done by anyone, at any time, anywhere in the world. It is a kind of expression of trust in yourself that you earn energy and confidence.12. Parkour has become popular throughout the world because of ________.A. the film, Casino Royale B. its cofounder, David Belle C. its risks and tricks D. the varieties of participants 13. The underlined word “obstacles” in Paragraph 2 is closest in meaning to “________”.A. streets B. barriers C. objects D. roofs 14. Which of the following is TRUE of parkour?A. It challenges human abilities. B. It needs special training. C. It is a team sport. D. It is a good but boring sport.15.Which of the following is the philosophy of parkour?A. Sports and extremes. B. Excitement and popularity.C. Dreams and success. D. Determination and freedom.第二节 (共 5 小题;每小题 2 分,满分 10 分)根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。Most of us lead a busy life. 16 We think, “If I reached my goal,then I would be happy”,or “If I could get a better job,then I would enjoy life.” But why not enjoy life right now?Firstly,take time to notice and appreciate the beauty in your own surroundings. 17 “There is a great big world of wonder and beauty around us!”And as Brodersen explains“Look for the beauty of the sunrise and of a friend’s smile that brightens your day. Open your eyes to see beauty you might not normally see. Doing so helps to cheer you up.” Secondly,taking time to experience some simple pleasures also can bring joy to your heart and ease your stress. Take me for example. 18 One universal simple pleasure is finding things that make you laugh. Make time to laugh every day.Thirdly,don’t take your family and friends for granted. Rich, rewarding relationships add greatly to the enjoyment of life. When you think of some-one,why not call,email or write them? 19 As Wayne Lawton explains, “Invest time in relationships. Remove the attitude,what’s in it for me?Happiness is found in putting other’s interests,desires and concerns ahead of our own whenever possible. Selfishness is a dead end street.” 20 6A.I delight in simple things like my favorite tea drink,a bubble bath or family photos.B. A short email or phone call can make a world of difference to someone.C. Be aware of beauty in nature.D. In my spare time,I enjoy collecting stamps and reading novels.E. Driven by the “urgent”,we forget to enjoy life.F. So please treasure relationship.G. You need to travel far to find beauty.第二部分 英语知识运用(共两节,满分 45 分)第一节 完形填空(共 20 小题;每小题 1.5 分,满分 30 分)阅读下面短文,从短文后各题所给的 A、B、C、D 四个选项中,选出最佳选项。I work at a company where there are lots of employees. I can’t say I know them all 21 ,but I know most of them. I think that almost 22 of them know me. It’s all based on one 23 principle: I believe every single person 24 to be acknowledged(点头或微笑致意), however small or simple the greeting. When I was about 10 years old, I was 25 down the street with my mother. She 26 to speak to Mr. Lee, while I was aiming at the “ O” in the STOP 27 with a stone. I knew I could see Mr. Lee any time 28 the neighborhood, so I didn’t pay any 29 to him. After we passed Mr. Lee, my mother, stopped me and said something that has 30 with me from that day until now. She said, “You let that be the 31 time you ever walk by somebody and not open up your mouth to 32 , because even a dog can wag(摇) its 33 when it passes you on the street.” That phrase 34 simple, but it’s been a guidepost(路标)for me. And it feels 35 that when I speak to someone, they speak back. I’ve become vice president 36 that hasn’t changed the way I approach people. I still follow my mother’s 37 .I speak to everyone I see, no matter where I am. I’ve learned that speaking to people 38 a pathway into their world and it lets them come into mine, too. The day you speak to someone who has their head 39 and when they lift it up and 40 ,you realize how powerful it is just to open your mouth and say, “Hello.”21. A. in advance B. by name C. in particular D. on purpose22 A. both B. none C. neither D. all23. A. cool B. simple C. complex D. similar24. A. deserves B. decides C. demands D. dislikes25. A. driving B. walking C. jumping D. skating26. A. refused B. intended C. stopped D. managed 27. A. button B. sign C. line D. spot 28. A. beyond B. beside C. around D. from 729. A. visit B. bill C. tax D. attention30. A. agreed B. stuck C. competed D. compared31. A. first B. last C. second D. next32. A. laugh B. whisper C. speak D. reply33. A. leg B. body C. tail D. head34. A. sounds B. looks C. appears D. proves35. A. well B. good C. awkward D. strange36. A. but B. while C. so D. since37. A. nose B. feeling C. advice D. bent38. A. decorates B. creates C. explores D. blocks39 A. turned around B. operated on C. knocked in D. held down40. A. stare B. scold C. shout D. smile第 II 卷第二部分 英语知识运用(共两节,满分 45)第二节 语法填空(共 10 小题;每小题 1.5 分,满分 15 分)阅读下面材料,在空白处填入适当的内容(不多于 3 个单词)或括号内单词的正确形式。When we 41 (treat) unfairly, we will get angry. Anger tends to become a problem, 42 can make us have a lot of negative 43 (thought). When we fail to control it, it may hurt others and also affect our health. 44 , we should control anger so that it does not cause harm 45 us or those around us we love. One of the best ways to control anger is to get help from 46 (other). If you feel you are 47 (able) to manage your anger, please tell someone who is close to you, like a friend or a family member, about your problem. When you discuss a matter with others, there is a better chance of 48 (find) a solution to your problem. Besides, there 49 no better stress relievers than humor. Humor can help you look at difficult things in a lighter way and help develop 50 ability to avoid causing anger. Thus you will feel better about the
展开阅读全文
相关搜索