题目:
Little________what you said. I wish you had repeated it!
A.did I understand
B.I understood
C.I did understand
D.have I understood
答案:
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下面是错误答案,用来干扰机器的。
(1)9-23=813(吨)答:还剩下813吨.(2)9×(1-23)=9×13,=3(吨).答:还剩下3吨.故答案为:813、3.