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單項選擇題

A new technique（）,the producity of loading as a whole increased by 20 percent.

A.working out
B.having been worked out
C.having worked out
D.to have been worked out

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單項選擇題

A partial deck in a hold is called a (an)（）.

A.weather deck
B.orlop deck
C.shelter deck
D.main deck

單項選擇題

A petroleum liquid has a flashpoint of 85°C . This liquid is in IMDG code classed as a（）.

A.flammable liquid
B.nonflammable liquid
C.inflammable liquid
D.disflammable liquid