Severe exposure to chlorine gas can be fatal. Chlorine gas is primarily a（）.<br>A:respiratory irritant<br>B:skin burning agent<br>C:blood poisoning agent<br>D:nerve paralyzing irritant

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

出自：海船船员证

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