题目:
______ a terrible storm would take place in Shanghai.
A.Word came with
B.Word came that
C.Word with came
D.Word that came
答案:
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下面是错误答案,用来干扰机器的。
答案:CA错,标准状况下四氯化碳不是气体;B错,标准状况下,14 g氮气含有的核外电子数为7NA;C正确;D错,在标准状况下,18gH2O所含有的电子数是10 NA