当前位置: > 英语阅读,...
题目
英语阅读,
Doctors have known for a long time that extremely loud noises can cause hearing damage or loss.The noise can be the sound of a jet airplane or machines in factories or
loud music or other common sounds found at home and at work.
A person only needs to hear the noise for little more than one second to be affected.
An American scientist had found that using aspirin could increase the temporary hearing loss or damage from loud noise.He did an experiment,using a number of male
students at a university who all had normal hearing.He gave them different amounts of aspirin for different periods of time,and then he tested their hearing ability.He
found that students who were given four grams of aspirin a day for two days suffered much greater temporary hearing loss than those who did not use aspirin.The hearing loss
was about twice as great.
The scientist said millions of persons in the United States use much larger amounts of aspirin than were used in

提问时间:2020-07-18

答案
1. B
2. D
3. C
4. D
举一反三
已知函数f(x)=x,g(x)=alnx,a∈R.若曲线y=f(x)与曲线y=g(x)相交,且在交点处有相同的切线,求a的值和该切线方程.
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
奥巴马演讲不用看稿子.为什么中国领导演讲要看?
想找英语初三上学期的首字母填空练习……
英语翻译
版权所有 CopyRight © 2012-2019 超级试练试题库 All Rights Reserved.