搜题请搜索小程序“爱下问搜题”
问题 单项选择题

油路中漏入空气的诊断现象不包括（）

A.柴油机起动不久时，功率足有力气

B.柴油机工作一段时间后逐渐变无力，甚至熄火

C.拧下柴油机滤清器上的放气螺钉，有大量气泡和油沫排出

D.拧下柴油机滤清器上的放气螺钉，排油不畅或产生的气泡、油沫极少

答案

参考答案：D

改错题

It is good to see that today more people have realized the importance exercising and are playing sports regular. But the problem is that there are not enough sports facilities to meet the public growing demand. I love playing basketball and often play with my friends on weekends. Therefore, it is difficult to rent a basketball field and impossible to find a free one. It seems that all courts in the city were always full. Weather permitted, we can play in outdoors. But on rainy days or in winter we have to turn to indoor courts. There are not much in my city, and the charge is expensive. The government should build more public sports facilities, so easier accesses will encourage more people to participate in sports.
查看答案
单项选择题

按照层数的不同，可将住宅建筑分为四类，在下列表书中，哪项有误( )

A．低层住宅2～3层

B．多层住宅4～6层

C．中高层住宅7～9层

D．高层住宅10～30层
查看答案