皮皮学，免费搜题
登录
搜题
【单选题】
已知某电路的电压为u=28.28sin(314t+120°)V,电流i=7.07sin(314t+60°)A, 则该电路的无功功率为A.
173.2Var
B.
50Var
C.
100Var
D.
86.6Var
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】SECTION A CONVERSATIONS Directions: In this section you will hear several conversations. Listen to the conversations carefully and then answer the questions that follow. 听力原文：M: I'm sorry I'm late, Ci...
A.
From a newspaper advertisement.
B.
From a magazine article.
C.
From a television program.
D.
From an automobile dealer.
【简答题】Questions on Leson 10: What's the essence of the struggle between fundamentalists and modernists ? Why did this trial in a small town draw so much attention in the U.S ? in your opinion, What is the m...
相关题目：