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[originaltext] Everybody loves the swimming pool. But how clean is the water
[originaltext] Everybody loves the swimming pool. But how clean is the water
游客
2023-12-25
7
管理
问题
Everybody loves the swimming pool. But how clean is the water in the average backyard or public pool? If you trust chlorine to take care of germs, you’re in for a surprise.
Chlorine and other disinfectants do indeed help to clean the water, but some germs can survive in even the best-kept pool. For example, cryptosporidium may live in pool water for several days. Crypto causes a diarrhea illness and may rinse off the bodies of infected people or diapered children into the pool. If you swallow infected pool water, you may become sick.
Other germs may live for a few minutes or a few hours in a chlorinated pool: Giardia, Shigella, and E. Coli may cause diarrhea illnesses. Pseudomonas Aeruginosa may cause an ear infection called swimmer’s ear and also a skin infection called "hot tub rash", that is usually associated with very warm pools and spas.
选项
A、Dangerous to Swim
B、Swim with Germs
C、Swimming Pool
D、How to Swim in Water
答案
B
解析
本题的测试点是要从全文来考虑该段落所谈论的主题。a项(游泳危险)、b项 (游泳与细菌)、c项(游泳池)和d项(怎样游泳)中,通过比较可知,b项包括了“游泳”和“细菌”两个主题关键词,符合文章内容,最适合作标题。
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