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 （）.

The（）may examine or re-examine the goods or take samples from them straightaway in the absence of the consignee or the consignor whenever it considers this necessary.

（）are liable to be stoten, pilfered or may damaged due to improper handing or stowage.

Banks have no liability for any delay or loss caused by postal or telex failure.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

简述世界近代史中存在的三大世界性矛盾。

“当立法权和行政权集中在同一个人或同一个机关之手，自由便不复存在了；……如果司法权不同立法权和行政权分立，自由也就不存在了……如果司法权同行政权合二为一，法官便将握压迫者的力量。”此段话应当出自：（）

标志着世界现代史开端的历史事件是（）

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。