问题
单项选择题
当离心式压缩机润滑油系统供油压力降至()MPa时应联锁停机。
A.0.10
B.0.15
C.0.20
D.0.25
答案
参考答案:B
当离心式压缩机润滑油系统供油压力降至()MPa时应联锁停机。
A.0.10
B.0.15
C.0.20
D.0.25
参考答案:B
根据对话内容,将方框内符合对话情景的句子抄写在空白处,使对话恢复完整,其中两项是多余的。 A: Hello , 小题1:________________________________ B: Sorry, She is out. A: When will she come back? B: 小题2:.____________________________________________ A: When she comes back, Could you ask her to call me as soon as possible? I want to ask her about Terra Cotta Warriors. B: Sure. 小题3:.__________________________________________ A: My telephone number is 45781265. B: 小题4:. __________________________________________________ A: My name is Lily. B: Okay, I will tell her to call you when she comes back. A: 小题5:. ______________________________________. Good bye. B: Good bye.
|