问题
单项选择题
远程台上所需的电源应接在钻台或机房动力电源总闸(),并单独控制,以便出现紧急情况井场或机房电源被切断时不影响电机工作。
A、随意
B、之后
C、之前
答案
参考答案:C
远程台上所需的电源应接在钻台或机房动力电源总闸(),并单独控制,以便出现紧急情况井场或机房电源被切断时不影响电机工作。
A、随意
B、之后
C、之前
参考答案:C
情景交际。从方框中选出正确的选项,补全对话。 | |
A: Excuse me! B: Yes? 1_____ A: Could you tell me the way to the West Park? B: 2_____ Go along this street, then turn left at the first crossing. A: Oh, I'm sorry. I can't follow you. 3_____ B: OK. Go along this street, then turn left at the first crossing. Go on until you reach the end of the street, then you will find it. A: 4_____ B: No, it isn't It will take you ten minutes to walk there. A: Thank you very much. B: 5_____ | |
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