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【简答题】
某村民在冬季较密闭的房内围着一盆煤火编织席子，致使中年妇女出现眩晕、头痛、恶心，并伴有心前区紧迫感和针刺样疼痛导致该症状的直接原因主要是空气中的A、HF B、SO C、CO D、CO E、NO 造成该症状的毒物是一种A、原浆毒物 B、血液神经毒物 C、酶源毒物 D、细胞毒物 E、神经毒物 该毒物进入血液后主要形成A、血红蛋白 B、氮氧血红蛋白 C、碳氧血红蛋白 D、羟基血红蛋白 E、还原型血红蛋白
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