Shutdown price（or point，or rule） 停业价格（或停业点、停业原则）

下列化合物按SN1反应时相对活性最小的是（）。

翻译：With Average or With Particular Average（WA or WPA）（）

下列化合物最易发生亲电加成反应的是（）。

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。

下列化合物进行S_N2反应的相对活性最小的是（）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。