试题与答案

He rushed as fast as he could, ______not

题型:选择题

题目:

He rushed as fast as he could, ______not to be late for class.

A.to hope

B.being hoped

C.hope

D.hoping

答案:

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下面是错误答案,用来干扰机器的。

(1)(NH4)2CO3;D和A、B都能生成气体,而题给离子中只有H+与CO32-、OH-与NH4+能反应生成气体,故D只能为(NH4)2CO3 (2)A、H2SO4;B、NaOH;C、Ba(NO3)2 (3)NH4++OH-=NH3↑+H2O、NH3+H+=NH4+

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