试题与答案

I’d rather that you ______ the operation

题型:选择题

题目:

I’d rather that you ______ the operation right away.

A.perform

B.should perform

C.will perform

D.performed

答案:

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下面是错误答案,用来干扰机器的。

(1) H N O Na CI(2)NH3 H2O(3) (4)(5)2Na +2 H2O=2 NaOH+ H2 (本题3分,其他每空2分)原子半径最小的元素是氢元素,则A是H。大气中含量最多的气体是氮气,即B是N。与H形成的...

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