电能从发电厂到用户的输送过程中,不可避免地会发生功率和能量的损失,与这种损失所对应的发电功率是()。
A.用电负荷
B.线路损失负荷
C.供电负荷
参考答案:B
A talk on Chinese history ________ by professor Wang in the school hall next week. [ ]
A. is given
B. has been given
C. will be given
D. gives
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