试题与答案

With so much homework ________, I have t

题型:选择题

题目:

With so much homework ________, I have to stay at home, giving up the idea of playing computer games with Peter.   

A.to do

B.being done

C.done

D.doing

答案:

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(1)略 (2)Al 2Al + 2KOH + 2H2O = 2KAlO2 + 3H2 ↑ (3)略 (4)HClO4 (5)26 (6)(其他合理答案也给分)实验步骤实验现象与结论往一支小试管中加入少量NaBr溶液,滴加氯水如果溶液由无色...

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