井下钻场采用局部通风机通风时，钻场的动力设备应与风机实现（）
A、同步
B、异步
C、风电闭锁
D、对接
参考答案：C
“We weren’t sure which way to go. In the end, we turned right.”
“You _______ the wrong way. You _________ left.”
A．had gone; must have turned
B．went; must turn
C．have gone; would have turned
D．went; should have turned
设计报表通常包括两部分内容：______和布局。
