1、 2015 20 1.5 30 . 1 1.5 A B C D . A B C D B 2 A B C D . A A B B C C D D C 3 1.5 A B C D . A A B B C C D D C 4 1.5 2014 A B C D . A B C D B 5 1.5 2014 GaAs “LED ” A 31 B Ga C D 69.72g . A = 31 A B Ga B C “ ” C D 69.72 1 g D D 6 1.5 2014 2014 “65” “ ” A PM 2.5 2.5 m B C D . A PM 2.5 2.5 m B PM2.5 C D
2、CO NO 2 A PM 2.5 2.5 m A B PM2.5 B C C D CO NO 2 D B 7 1.5 A N B HCl C Al D H 2 . A N B HCl C Al D H 2 C 8 1.5 A B C D . A B C “ ” D A A B “ ” B C “ ” + + C D D A 9 1.5 2012 A B C D - - . A A B B C C D D D 10 1.5 201 4 N 2Mg 2+SO 2 A B +4 C D . A 2N A B SO 2 +4 B C C D D B 11 1.5 “ ” C 10 H 15 N A C
3、 H N B C H N 10 15 1 C 10 15 1 D 149 . A B C D A B 12 10 1 15 14=120 15 14 C D “g ” “1” A 12 1.5 201 4 A 3 B 17 C D AlCl 2 . A B C D A 2 B 17 C 7 D 3 3 +3 7 1 1 AlCl 3 B 13 1.5 201 4 X 2X+2H 2 O=2Ca OH 2 +O 2 X A CaO B CaO 2C CaCO 3D CaCl 2 . 2X+2H 2 O=2Ca OH 2 +O 2 2 O 4 H 2 Ca 6 O 4 H 2X 4 O 2 Ca X 1 Ca 2 O B B 14 1.5 201 4 A B C D . A A B
