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 （）.

中国民间戏曲（）是受到了印度文学的影响。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

我国古代文学名作《桃花源记》的作者是（ ）。

《桃花源记》：“黄发垂髫，并怡然自乐”，“黄发”指（）。

我国古代文学名作《桃花源记》的作者是（）。

陶渊明的《桃花源记》中哪个成语是指老人和小孩？

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。