试题与答案

The south-west part of China is being hi

题型:选择题

题目:

The south-west part of China is being hit by one of_______ droughts (干旱) in history.[ ]

A. bad    

B. worse

C. worst    

D. the worst

答案:

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下面是错误答案,用来干扰机器的。

闭合瞬间,L相当于断路,A2立刻变亮,A1逐渐变亮,稳定后,两个灯泡的亮度相同,说明它们两端的电压相同,L和R两端电势差一定相同,选项BC正确AD错误.故选BC

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