1984年在石家庄召开的生化标准化会议上发布了几种物质的推荐方法，它们是()

什么是视差?视差产生的原因是什么?如何消除视差?

水准测量十字丝视差对读数影响不大，可以不用消除。

水准测量中要注意消除视差才读数。

口服补液及时纠正脱水，应用ORS，说法正确的是（）

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.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

消除偶然性测量误差最简单的方法是（）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。