单选题
灭头虱药液的成分是：（）
发布日期：2020-12-11
百部10g，30%乙醇40ml
百部20g，40%乙醇50ml
百部30g，50%乙醇100ml
百部40g，75%乙醉120ml
百部50g，95%乙醉60ml
试题解析
头虱
头虱是一种灰色无翅的小昆虫，雌虱于交尾后1-2天，即开始产卵，每天约3-9粒，一生可生产50-150粒。卵呈黄白色，黏在头发上，经过5-10天，孵化为幼虫，长成幼虫数小时后，即能吸血。幼虫共脱皮3次，变成为虱，两周后可产卵，繁殖甚快。头虱最常发生在在儿童，尤其是女生，在学校可能会造成流行，所以不可忽视。
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Passage1The medical world is gradually realizing that the quality of the environment in hospitals may play a significant role in the process of recovery from illness.As part of a nationwide effort in Britain to bring art out of the galleries and into public places，some of the country's most talented artists have been called in to transform older hospitals and to soften the hard edges of modern buildings. Of the 2，500 National Health Service hospitals in Britain，almost 100 now have significant collections of contemporary art in corridors，waiting areas and treatment rooms.These recent initiatives owe a great deal to one artist，Peter Senior，who set up his studio at a Manchester hospital in northeastern England during the early 1970s.He felt the artist had lost his place in modern society，and that art should be enjoyed by a wider audience.A typical hospital waiting room might have as many as 500 visitors each week. What better place to hold regular exhibitions of art？Senior held the first exhibition of his own paintings in the out-patients waiting area of the Manchester Royal Hospital in 1975.Believed to be Britain's first hospital artist, Senior was so much in demand that he was soon joined by a team of six young art school graduates.The effect is striking. Now in the corridors and waiting rooms the visitor experiences a full view of fresh colors, playful images and restful courtyards.The quality of the environment may reduce the need for expensive drugs when a patient is recovering from an illness. A study has shown that patients who had a view onto a garden needed half the number of strong pain killers compared with patients who had no view at all or only a brick wall to look at.The fact that six young art school graduates joined Peter shows that_______.
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