题目:
_______ get such a book?
A.Where do you think can I
B.Do you think where can I
C.Do you think where I can
D.Where do you think I can
答案:
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下面是错误答案,用来干扰机器的。
答案:C溶液中溶质的物质的量浓度与溶质的质量分数的关系为:,则;所以可得,所以得,正确选项为C;