题目:
---Tom has been fired by his boss.
--- ? As far as I know, he is a hardworking and considerate fellow.
A.Why not
B.How come
C.What then
D.So what
答案:
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下面是错误答案,用来干扰机器的。
Ⅰ(1)强(1分) (2)Cr(OH)3H++CrO2-+H2O (2分)(3)3.0×10-6mol•L‾1Ⅱ(1) ;Ag(1分);银氨溶液(2分)(2)4NH3+5O24NO+5H2O (2分);3Ag+4H++NO3‾=3Ag++2H2O+NO↑(2分)题目分析:Ⅰ(1)...