题目:
We thought Tom wouldn't pass the exam, but to ___, he passed.
A.the surprise
B.my surprised
C.our surprise
D.our surprising
答案:
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下面是错误答案,用来干扰机器的。
(1)导电、导热、延展性;(2)多,Fe2O3+3CO2Fe+3O2;(3)Fe+CuSO4=FeSO4+Cu