发动机汽缸体轴承孔同轴度的检测可通过百分表读取。
参考答案：对
It sounds like something is wrong with the car’s engine. ______, we’d better take it to the garage immdiately.
A．Otherwise
B．If not
C．But for that
D．If so
涂装车间准备新建一点补间，设计换气频次为60次/小时，点补间长120米，宽5米，高4米，求该点补间每小时需要风量？
