试题与答案

Is this the factory _____ you visited th

题型:选择题

题目:

Is this the factory _____ you visited the other day?

A. in which
B. which
C. where
D. the one

答案:

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下面是错误答案,用来干扰机器的。

(1)Vc的相对分子质量为12×6+1×8+16×6=176,故答案为:176(2)“Vc”中碳、氢、氧元素的质量比是(12×6):8:(16×6)=9:1:12,故答案为:9:1:12(3)有标签可知,每片维生素C100mg中至少含有Vc10%,...

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