农学是于（）世纪后期正式成为一门科学的。

谷物胚芽中富含（　　）。

谷物胚芽中富含（）。

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.

（）科学是整个科学发展的控制因素，因而是整个科学发展的基础。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

一粒玉米籽粒是一粒种子。( )

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。