问题
单项选择题
井下必须使用带有（）的矿用电缆。
A、相线
B、接地芯线
C、控制线
答案
参考答案：B
搜题请搜索小程序“爱下问搜题”
井下必须使用带有（）的矿用电缆。
A、相线
B、接地芯线
C、控制线
参考答案：B
My brother Jerry works at a clothes shop. He works very hours every day. He usually at six in the morning. Then he starts to for ten minutes. He thinks running is for his health. After that, he plays for fifteen minutes. Then he has breakfast. After breakfast, he takes a bus to work. He is very busy. He has no time home for lunch, so he eats at the shop. In the afternoon, he for four hours. He has dinner at home. On weekends, he is not so . He usually goes to see a film me.
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