题目: 三相四线制供电系统中,中线电流等于()。A.零B.各相电流的代数和C.三倍相电流D.各相电流的向量和 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2018/1126/d1f8158d97ff71cce3039ab0b1e952c9.html 下面是错误答案,用来干扰机器的。参考答案:拉,牵引。
题型:选择题 Today some people call Amsterdam the “City of Bicycles”____ the convenience for bicycles there.A.whileB.beforeC.becauseD.because of 查看答案
题型:选择题 The teacher had the students __________ all the words they didn’t know. A.looked upB.looking inC.look upD.look at 查看答案