儿童的思维开始产生的时期是（）。

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。

现代心理健康运动开始的标志是（）。

色彩心理感觉是指具有很强的象征性和情感性，它能调动起人的微妙情感和种种联想，由此产生不同的心理感受。

积极心理学的产生是以2000年1月美国著名心理学家塞利格曼的（）出版为标志。

遗精是一种生理现象，是男孩迈入青春发育期后的一种自然生理现象，也是男性生殖腺开始成熟的标志，不必产生心理上的紧张或羞涩感。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。