题目内容
戴维南等效和诺顿等效可以互相转换。
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互易定理适用于各种网络。
选词填空5However, _1__2007, __2__30 delegates asked the government to cancel the One-Child Policy. According__3__them, it was better__4__children to grow__5__in families with more than one child.请在以下介词中选择：up, to, for, in, about
Be (care)____while crossing the roads and remember that they drive on the left in English.
(surprising )_____, the team was able to finish the task two weeks ahead of schedule.
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