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【单选题】
用N A 表示加德罗常数，下列叙述正确的是A.
64 g SO 2 含有氧原子数为N A
B.
物质的量浓度为0．5 mol／L MgCl 2 溶液，含有Cl － 离子数为N A
C.
标准状况下，22．4 LH 2 O的分子数为N A
D.
常温常压下，14 g N 2 含有分子数为0.5 N A
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【简答题】A When you think of success, you think of relative achievements in your own world. Each element of your world is important to you, and there is no need to compare with others. You cannot affect the su...
【单选题】—You just think of yourself! —Why you think that way? [ ]
A.
must
B.
could
C.
should
D.
might
【简答题】— You just think of yourself! You kept me waiting for two hours. I’m sorry that you ______ think so. would B. should C. could D. might
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