中考复习
参考答案
一、填空题（每小题4分，共20分） 1．B 2．C 3．A 二、填空题（每小题3分，共30分） 6．
7．(x 3)(x 3)
4．B
5．B
10．0.88
8．4
9．50
11．2 m 14 12．240 13． 14．8 15．7.5 三、解答题 16．（1）16 ····························································································································· 3分 （2）
······························································································· 4分 17．（1）1 28％ 38％ 34％ ···························································································· 2分 （2）816 0.34 2400 ········································································································ 1分
A 2400 (840 816 144) 600 ···················································································· 2分 B 1 (0.34 0.25 0.06) 0.35 ······················································································ 3分 A的值为600，B的值为0.35 ····························································································· 4分 （3）408 34％ 1200 ········································································································ 1分 2400 1200 2 ···················································································································· 2分
该校学生平均每人读2本课外书．
18．（1）x1 1，x2 3 ········································································································ 2分 （2）1 x 3 ························································································································ 2分 （3）x 2 ····························································································································· 2分 （4）k 2 ····························································································································· 4分