题目：
今年，某市出现了大范围的扬沙天气．发生扬沙时，空气中增加了大量的（ ）
A．一氧化碳
B．可吸入颗粒物
C．二氧化氮
D．二氧化硫
答案：
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参考答案：对解析：本题考核保险合同。
今年，某市出现了大范围的扬沙天气．发生扬沙时，空气中增加了大量的（ ） A．一氧
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