單項(xiàng)選擇題

Cargo that gives off fumes that may contaminate other cargo is known as a(n) （）.

A.delicate cargo
B.dirty cargo
C.toxic cargo
D.odorous cargo

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單項(xiàng)選擇題

Blood flowing from a cut artery appears（）.

A.dark red with a steady flow
B.bright red with a steady flow
C.bright red and in spurts
D.dark red and in spurts

單項(xiàng)選擇題

Bleeding from a vein may be ordinarily controlled by（）.

A.applying direct pressure to the wound
B.heavy application of a disinfectant
C.pouring ice water directly onto the wound
D.pinching the wound closed