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。

除铁、除锰滤料的成熟期是指什么？任何滤料是否需到成熟期后才出现催化氧化作用？

任何林种、树种都会出现工艺成熟。

什么是工艺成熟，简述其确定成熟的方法？

社会生产力在不断发展，但现代组织的规模和内部结构日趋简单。（）125.任何组织在发展过程中，都会出现失误。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。