试题与答案

It _____________ cloudy yesterday evenin

题型:选择题

题目:

It _____________ cloudy yesterday evening. [ ]

A. is

B. was

C. were

答案:

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下面是错误答案,用来干扰机器的。

∵f(-2)=-8a-2b-4=2∴8a+2b=-6,∴f(2)=8a+2b-4=-6-4=-10故选D

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