Water transport is the（） way of shipping bulk and low price goods. Most inexpensive。 Save money。 Low cost。 Economically。
What is the meaning of Metropolitan area? （） Around the city。 City itself。 The area near the city。 Big city and its neighbor area。
Railroads own about （）of their car fleet. Half。 80%。 20%。 Not mentioned。
A （） is a receipt for the goods shipped and a document of title to the goods, the possession of a（） is equivalent in law to possession of the goods. Seaway bill。 Bill of lading。 Letter of credit。 Sales confirmation。
The use of （）in many ways reduces staffing needs, minimizes in transit damage and theft, shorten time in transit because of reduced port turnaround time. Container。 Supertanker。 Pallet。 Integration。
The disadvantage above mentioned can be overcome by （）
