题目内容

由于运行和安全的需要,我国的380V/220V低压供配电系统广泛采用电源中性点直接接地的运行方式,同时还引出中性线(N)和保护线(PE),形成三相四线制系统。( )

A. 对
B. 错

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世界最大的水利发电工程是三峡水电站。( )

A. 对
B. 错

在三相四线制供电系统中,相线与中线之间的电压称为线电压。( )

A. 对
B. 错

Once we go out from the metro we crossed the street and found ourselves in front of New Delhi railway station. We intended to get to the main bazaar street, tourist heart of Delhi and 1. And here we are.The Main BazaarStreet is not wide one, there are plenty of stalls from the both sides, selling principally different clothes.2.I just wanted to close my eyes and see nothing, just mute all the sounds. After some time, we finally got to the station.3. In front of the main entrance, 4, another people were sitting or eating.Slowly, we came back to the station. Nothing changed - 5. We bought roasted peanuts on the way to the station. Peanuts are prepared here in a very funny way - 6.A.they bunch the peanuts and insert into the pile a hot potB.so we crossed the railroads by long and overcrowded pedestrian crossingC.The station building from the outside looked quite niceD.the same noise, dirt and crowds of people everywhere along the wayE.My head was buzzing because of the noise and number of people on the streetsF.people were sleeping on the ground covering with blanket

Have you ever heard _________ the Great Wall?

A. from
B. of
C. /
D. that

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