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（）.

Effects which are dutiable or subject to prohibitions or restrictions should be declared in （）.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

让幼儿学会自己的事情自己做，这体现了学前教育中的（）原则。

让幼儿学会自己的事情自己做，这主要体现了学前教育中的（）原则。

让幼儿学会自己的事情自己做，这体现了学前教育中的（ ）原则。

让幼儿学会自己的事情自己做，这体现了学前教育中的（　）原则。

幼儿园要使家长意识到家庭教育需要与国家的教育方针和幼儿园教育法规的精神相一致，这体现了幼儿园家庭教育指导需要遵循（）原则。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。