乙烯氧氯化法生产氯乙烯，1摩尔乙烯与0.5摩尔氧气及1摩尔氯化氢反应生成1摩尔二氯乙烷。（）

乙烯氧氯化法生产氯乙烯，1摩尔乙烯与0.5摩尔氧气及2摩尔氯化氢反应生成1摩尔二氯乙烷。

1摩尔间二硝基苯还原生成1摩尔间二苯胺，理论上需要铁粉的摩尔数为（）

1摩尔间二硝基苯还原生成1摩尔间二苯胺，理论上需要铁粉的摩尔数为（）

原核生物中，有氧条件下，利用1摩尔葡萄糖生成的净ATP摩尔数与在无氧条件下利用1摩尔生成的净ATP摩尔数的最近比值是（）。

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。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。