选择题:某工业城市,某年夏天的几天时间里,光照强烈,空气出现了浅蓝色的烟雾,具有较强的刺激性。该市的交通流量并不大。该烟雾的主要来源可能是( )。 题目分类:执业医师 题目类型:选择题 查看权限:VIP 题目内容: 某工业城市,某年夏天的几天时间里,光照强烈,空气出现了浅蓝色的烟雾,具有较强的刺激性。该市的交通流量并不大。该烟雾的主要来源可能是( )。 A.汽车尾气 B.民用燃煤 C.石化企业 参考答案: 答案解析:
根据以下材料,回答31-35题Enlightening, challenging, stimulating, fun. These were some of t 根据以下材料,回答31-35题Enlightening, challenging, stimulating, fun. These were some of the words that Nature 分类:执业医师 题型:选择题 查看答案
根据以下材料,回答41-45题Getting back into excercise can be a challenge in the best of tim 根据以下材料,回答41-45题Getting back into excercise can be a challenge in the best of times, but with gyms an 分类:执业医师 题型:选择题 查看答案
根据以下材料,回答26-30题More Americans are opting to work well into retirement, a growing 根据以下材料,回答26-30题More Americans are opting to work well into retirement, a growing trend that threaten 分类:执业医师 题型:选择题 查看答案
根据以下材料,回答21-25题We have all encountered them, in both our personal and profession 根据以下材料,回答21-25题We have all encountered them, in both our personal and professional lives. Think abou 分类:执业医师 题型:选择题 查看答案