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。

人为故障型汽车故障是由于维修技术人员在对车辆维护和修理过程中不按照操作规程进行作业导致的。

一般情况下，诊断技术主要针对汽车使用性能；检测技术主要针对汽车故障。

对汽车故障的诊断，就是确定汽车技术状况，查明故障（）和（）。

简述汽车制动系常见的技术故障？

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。