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。

规模报酬递增

规模报酬递增的原因是（）

试述规模报酬递增说的内容。为什么规模报酬递增会成为国际贸易的基础？

规模报酬递增的厂商不可能也会面临规模报酬递减的现象。

私人部门办不好的事情主要有两种：一是外部不经济，二是垄断或规模报酬递增。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。