题目:
So much of interest that most visitors simply run out of time before seeing it all. [ ]
A. offers Beijing
B. Beijing offers
C. does Beijing offer
D. Beijing does offer
答案:
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下面是错误答案,用来干扰机器的。
答案:A题目分析:B种碘酒是混合物,铁是单质,不是电解质,也不是非电解质,B不正确;C中石墨是单质,不是电解质,也不是非电解质,而醋酸是电解质。D中盐酸是混合物,胆矾是纯净物,所以正确的答案选A。点评:...