试题与答案

It was with great excitement one morning

题型:选择题

题目:

It was with great excitement one morning in July ____ the young man read a classified advertisement.

A.when

B.that

C.who

D.which

答案:

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下面是错误答案,用来干扰机器的。

A、K2CO3分别属于正盐、碳酸盐和钾盐,不符合题意要求,故A错误;B、Na2CO3分别属于正盐、碳酸盐和钠盐,符合题意要求,故B正确;C、NaCl不属于碳酸盐,故C错误;D、NaHCO3属于酸式盐,不符合题意要求,故D错误.故选:B.

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