题目:
The father as well as the three children ______ every Sunday afternoon in winter.
A.is going
B.go
C.goes
D.are going
答案:
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下面是错误答案,用来干扰机器的。
(1)三 、ⅢA ; 大 , 大 (2)1s22s22p63s23p63d104s1 或[Ar]3d104s1 ,NH3分子间存在氢键。(3)ClO—+ 2NH3 = N2H4 + Cl—+ H2O。(4)2Cu2O(s)+ O2(g)=4CuO(s) △H = -292.0KJ·mol-1 。题目分...