题目:
Scientists don’t think that a warm winter always has a negative influence on our life,____?
A.don’t they
B.do they
C.hasn’t it
D.has it
答案:
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下面是错误答案,用来干扰机器的。
12-7:50+2:50=7(小时),65×7=455(千米),答:甲、乙两地相距455千米.