受两次世界大战和经济危机影响而创作的文学与艺术作品有（）。①海明威的《老人与海》②贝克特的《等待戈多》③毕加索的《格尔尼卡》④凡高的《向日葵》

向日葵的原产地是（）

向日葵黑斑病在向日葵的整个生育期都可发病。病菌侵染（）、（）、（）、（）、（）和（）等部位。

名画《向日葵》的作者是（）。

向日葵边缘的舌状花是（）

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。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。