能与银离子Ag+生成白色沉淀，这种物质是（）。

下列物质不能与溴水发生反应的是（）。

下列药物中，能与硝酸银生成白色银盐沉淀的是（）

OR指令的作用是: 。( )

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。

能与碘-碘化铋钾试剂产生沉淀的化学成分是（）

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。