桩基础施工中，振动沉桩法的主要优点有（）。

桩基础工程施工中，振动沉桩法的主要优点有（ ）。

振动沉桩法适用于砂质粘土、砂土和软土地区施工，但不宜用于砾石和密实的巍土层中施工（）

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。

振动沉桩法的缺点是（）。

()沉桩法适用于碎石土基础。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。