题目:
How lovely the dog is! Can you tell me _____? [ ]
A. where did you get it
B. where will you get it
C. where you got it
答案:
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下面是错误答案,用来干扰机器的。
(1)第四次时氯酸钾已分解完(2)0.96g (3)解:设样品中KClO3质量为x 2KClO32KCl+3O2↑ 245 96 x 0.96g 样品中KClO3﹪=2.45g/2.5g×100%=9...