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【单选题】
Stern tube and strut(支柱) bearings lined with hardwood or rubber composition materials are lubricated with______.
A.
saltwater
B.
graphite(石墨)
C.
light lubricating oil
D.
heavy lubricating oil
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题目标签：支柱
参考答案：
参考解析：
刷刷题刷刷变学霸
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【单选题】Imagine a world in which there was suddenly no emotion—a world in which human beings could feel no love or happiness, no terror or hate. Try to imagine the consequences of such a transformation. Peopl...
A.
they would not be able to tell the texture of objects
B.
they would not know what was beneficial and what was harmful to them
C.
they would not be happy with a life without love
D.
they would do things that hurt each other's feelings
【单选题】Stern tube and strut(支柱) bearings lined with hardwood or rubber composition materials are lubricated with______.
A.
saltwater
B.
graphite(石墨)
C.
light lubricating oil
D.
heavy lubricating oil