皮皮学，免费搜题
登录
搜题
【单选题】
发展低碳经济，是一场涉及生产模式、生活方式、价值观念和国家权益的全球性革命。A.
正确
B.
错误
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】We’ve had problems supplying some of our retail _________.
A.
outlets
B.
chains
C.
points
【单选题】_____ clearances in the main or crank pin bearings will sometimes be indicated by loss of pressure in the lubricating system before any bearing knock is heard.
A.
Too larger
B.
Too smaller
C.
Excess
D.
Excessive
【简答题】曲柄销 crank pin
【单选题】Excessive clearances in the main or crank-pin bearings will sometimes be indicated by _____ before any bearing knock is heard.
A.
loss of flow in the fuel system
B.
loss of pressure in the air system
C.
loss of flow in the lubricating system
D.
loss of pressure in the lubricating system
【单选题】On a medium-speed main propulsion diesel engine, the crank-pin or crank journalbearings receive lubricating oil from( ).
A.
a spindle lubricator
B.
an oil jet
C.
internal splashing
D.
drilled passages in the crankshaft
【单选题】在“中学为体,西学为用”的思想指导下,我国从清末开始试图建立现代学制,在颁布的诸多学制中,第一次颁布的现代学制是( )。
A.
壬寅学制
B.
癸卯学制
C.
壬子癸丑学制
D.
壬戌学制
【单选题】The crank pin journal is provided with large bores for _____.
A.
lubrication
B.
cooling
C.
balancing purpose
D.
ventilation
相关题目：
参考解析：
知识点：
题目纠错 0
发布
