餐厅应该禁烟的英文作文(150字)
题目
餐厅应该禁烟的英文作文(150字)
答案
The Non-Smoking Act comes into effect on January 1st,2011,and covers everywhere in the country.It targets all indoor public places,and signs prohitbiting smoking will be put up.This act is out of the concern for public health.Statistics show that the smoking population is about 300 million,but the population affected by second-hand smoking is 540 million 75 percent of the smokers are male,and the people who die of second-hand smoking exceeds 100 thousand people.So I think It is never a good idea to smoke in the restrant.
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
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