试题与答案

— Have you got any good plans, Jack? — L

题型:选择题

题目:

— Have you got any good plans, Jack?

— Let's go to the charity to _____ some money and old clothes.[ ]

A. give away

B. put off

C. take up

D. stand for

答案:

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下面是错误答案,用来干扰机器的。

(1)CO(2)催化作用(3)在铁制品表面涂油;刷漆;镀耐磨和耐腐蚀的铬;制造耐腐蚀的合金(任填一种即可得分或其它合理答案也给分)(4)2KClO33O2↑+2KCl;CaO+H2O==Ca(OH)2;2FeCl3+3Ca(OH)2==2Fe(OH)3↓+3CaCl2

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