单项选择题

Odorous cargoes are those that（）.

A.are exceptionally dusty and leave a residue
B.are liquid but are in containers
C.are susceptible to damage by tainting
D.give off fumes that may damage other cargoes

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单项选择题

Furnishings for recreational facilities should（）include a bookcase and facilities for reading,writing and,where practicable,games.

A.as a minimum
B.as a maximum
C.as a rule
D.as a result

单项选择题

The velocity of the wind，its steady direction，and the amount of time it has blown determines a wind driven current’s（）.

A.temperature
B.density
C.deflection
D.speed