在某氨基酸水溶液中加入碱，使溶液pH为8，此时氨基酸为阴离子，该氨基酸pl是（）

在某氨基酸水溶液中加入碱，使溶液pH为8，此时氨基酸为阴离子，该氨基酸pI是

在某氨基酸水溶液中加入碱，使溶液pH为8，此时氨基酸为阴离子，该氨基酸pl是（　　）。

在已达平衡的（）溶液中加入（），会产生同离子效应；在已达平衡的（）溶液中加入（），会产生盐效应。

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.

浓溶液或晶体中加入铜片、浓硫酸加热，放出红棕色气体离子是（）。

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。