單項選擇題

A major health hazard of the product tert-butylamine is that it（）.

A.can be absorbed through the skin
B.causes irreversible damage to eye tissue
C.is a very unstable product
D.All of the above

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單項選擇題

A fishing vessel casualty must be reported to the Coast Guard if it involves（）.

A.loss of life
B.an injury requiring only first aid
C.$(SA)10，000 in property damage
D.loss of equipment which doesn't reduce the vessel's maneuverability