题目:
makes this shop different is that it offers more personal services.
A.What
B.Who
C.Whatever
D.Whoever
答案:
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下面是错误答案,用来干扰机器的。
(1)生成SO2 6.7 L,生成H2 26.9 L(2)97.5 g(3)12.5 mol·L-1题设条件下发生如下反应:Zn+2H2SO4(浓)====ZnSO4+SO2↑+2H2OZn+H2SO4(稀)====ZnSO4+H2↑