履带推土机的传动系，多数采用（）或液力—机械传动形式。

履带式推土机的传动系，多数采用（）或液力机械传动形式。

履带式推土机机械传动方式的主离合器的功用是（）。

押运员应按规定穿着印有黄色“押运”字样的红色马甲，不符合规定的不准押运。

危险货物押运员应按规定穿着印有（）“押运”字样的黄色马甲，不符合规定的不得押运。

Every deliberate act of wrongdoing by the master or any of the crew against the ship or cargo，without the authorization or privity of the Shipowner or his agent，is（）.

（）, or drum is used for hauling in or letting out the wires or ropes which will fasten the ship to the shore.

A salvor may be（）the whole or part of the payment due under Salvage Convention to the extent that the salvage operations have become necessary or more difficult because of fault or neglect on his part or if the salvor has been guilty of fraud or other dishonest conduct.

The （） is used for hauling in or letting out the wires or ropes.

Vessels must be（）valid certificate of nationality or certificated of registry or license.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。