【判断题】室内消火栓给水系统由消防水源、消防给水设施、室内消火栓设备、控制设备等组件组成。()
【单选题】He doesn't make ________ clear why he w ants another job when he has a good one . [ ]
【判断题】室内消火栓给水系统由消防水源、消防给水设施和室内消火栓设备、控制设备等组件组成。( )
【单选题】What does the man mean?
A.
He agrees with the woman.
B.
He is thinking of a good plan.
C.
He thinks they should have a good time.
【简答题】A.He thinks it difficult to understand. B.He thinks it helpful to one's wisdom. C.He thinks it isn't useful at all. D.He has never thought about it.
【判断题】室内消火栓给水系统由消防水源、消防给水设施、室内消火栓设备组成。
【单选题】According to the old shoemaker's opinion, if one didn't do a good job, he ______.
A.
just wanted to collect other's money
B.
just wanted to do nothing
C.
wasn't proud of his work
D.
didn't have a prideful tradition
【判断题】室内消火栓给水系统由消防水源、消防给水设施、室内消火栓设备组成。这个是对的还是错的
【多选题】说明哪些阀可以在液压系统中作为背压阀使用?
【简答题】有哪些阀可以在液压系统中作为背压阀使用?