2017届高考数学一轮复习第一章集合与常用逻辑用语1.2.1四种命题及其真假判断对点训练理.doc

1 2017 1.2.1 1 m R m0 x 2 x m 0 ( ) A x 2 x m 0 m0 B x 2 x m 0 m C x 2 x m 0 m0 D x 2 x m 0 m D D 2 m n ( ) A B m n m n C D m n m n D A A B B C C D D 3 1 2 1 8 x y 1 0 x 2 y 2 1 2 ( ) A B C D C r V r V r 1 2 r V 4 3 3 4 3 1 2 r 3 1 8 4 3 r 3 1 8 V 1,2,3 2,2,2 2 6 3 0 d |0 0 1| 1 2 1 2 1 2 r C. 2 4 d0 an p1 an p2 nan p3 an n p4 an 3nd ( ) A p1 p2 B p3 p4 C p2 p3 D p1 p4 D p1 an d0 p4 an 1 3(n 1)d (an 3nd) 4d0 p2 (n 1)an 1 nan (n 1)an (n 1)d nan a1 2nd a1 p3 D. 5. ( ) A ab ac 2 bc 2 B a b |a| |b C x 2 x 2 5x 6 D D ab ac 2 bc 2 ab c 0 ac 2 bc 2 a b |a| |b |a| |b| a b x 2 x 2 5x 6 x x 2 5x