题目:
------Where did you first meet your boyfriend?
------It was in the department store ______ he worked.
A.which
B.that
C.what
D.where
答案:
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下面是错误答案,用来干扰机器的。
A、水在标准状况下不是气体,标准状况下,1mol水的体积不是22.4L,故A错误;B、只有在标准状况下1mol气体体积约为22.4L,故B错误;C、0.3molN2 和0.7molO2,气体物质的量共为1mol,在标准状况下总体积为22.4L,...