In consolidation service， it is usually the consignor who issues to each consignee his bill of lading.

单项选择题（） transport of goods is the principal means of transport in many countries due to the low threshold infrastructure requirements.

A.rail
B.road
C.sea
D.air

多项选择题Customs clearance in the import-export trade is one of the traditional functions of a freight forwarder.Customs clearance measures mainly include （）。

A.declaration
B.document-checking
C.duty- paying
D.cargo-examination

单项选择题On traffic lanes where demand is strong and plane capacity is limited， the air rates will be （）and vice versa for traffic lanes where supply exceeds demand.

A.low
B.high
C.normal
D.average

单项选择题When one of the original bills of lading being surrendered to the carrier， the others become （）.

A.invalid
B.valid
C.clean
D.dirty

单项选择题The services that a freight forwarder renders may often range from routine and basic tasks such as（）or customs clearance to a comprehensive package of services.

A.the providing of services
B.the utilizing of services
C.the booking of space
D.the loading and unloading