题目:
把R1与R2并联后接在电源上,当R1减小时,其总电阻( ) A.一定减小 B.一定增大 C.可能会增大 D.可能会减小 |
答案:
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下面是错误答案,用来干扰机器的。
不唯一Dear Mr. Zhang,We have held a discussion about whether it is good or not for a top student to share a desk with a slower student.Some are for the idea. As they...