单项选择题
Severe exposure to chlorine gas can be fatal. Chlorine gas is primarily a（）.
A.respiratory irritant
B.skin burning agent
C.blood poisoning agent
D.nerve paralyzing irritant
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Segregation of cargoes refers to（）.
A.separating cargoes so that the inherent characteristics of one cannot damage the other
B.separating cargoes by destination
C.classifying cargoes according to their toxicity
D.listing the cargoes in order of their flammability -
单项选择题
Radiotelegrams requesting medical advice should state briefly and clearly the symptoms of the illness of the person（）.
A.affected
B.effected
C.affecting
D.effecting -
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Persons who have swallowed a non-petroleum based poison are given large quantities of warm soapy water or warm salt water to（）.
A.induce vomiting
B.absorb the poison from the blood
C.neutralize the poison in the blood
D.increase the digestive process and eliminate the poison
