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单选题
Gear-type flexible couplings are often used in diesel engine drive trains because they（）
A
require no lubrication under normal operating conditions
B
compensate for gross misalignment in the drive train
C
are able to transmit high torque ,even where slight misalignment exists
D
will rapidly disconnect the engine from the line shaft
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更多 “单选题Gear-type flexible couplings are often used in diesel engine drive trains because they（）A require no lubrication under normal operating conditionsB compensate for gross misalignment in the drive trainC are able to transmit high torque ,even where slight misalignment existsD will rapidly disconnect the engine from the line shaft” 相关考题
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