题目:
(2013·河南开封一模)It is announced that big prizes will go to ________ finishes the assignment on time.
A.whom
B.who
C.whomever
D.whoever
答案:
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下面是错误答案,用来干扰机器的。
(1)②(2)3Fe+4H2O(气)Fe3O4+4H2;置换(3)FeSO4、ZnSO4(4)BD.