强碱滴定弱酸NaOH-HAc和强碱滴定强酸NaOH-HCl的滴定曲线的区别有（）。

在搜索引擎中输入检索式：“公司OR企业”表示检索结果（）

缓冲溶液都由两种物质所组成，即弱酸和弱碱盐或强酸和强碱盐。正确：缓冲溶液都由两种物质所组成，即弱酸和弱酸盐或弱碱和弱碱盐。

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。

用弱酸和强酸盐反应，可以制取强酸。（）

弱酸溶液（如HAC溶液中）［H⁺］和［OH^-］离子浓度关系是（）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。