从语言学的分科来看，“现代汉语”属于（）语言学和（）语言学。

下列各个汉语词语中的“子”是词根语素的是（）

现代汉语属于____语言学，汉语史属于____语言学。

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.

When loading or discharging dry mud or cement，crew members should use goggles and（）.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

语言学已历经了传统语言学、历史比较语言学和现代语言三个阶段。现代语言学的正式开端是（）.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。