（）, 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。

教育心理起源论认为教育起源于()。

教育心理起源论认为教育起源于（）

教育心理起源论认为教育起源于（）

教育心理起源论认为教育起源于（）。

教育生物起源论和教育心理起源论之所以反科学，是因为它们的共同点都是否定了教育的（　）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。