英语翻译
题目
英语翻译
下面是两段翻译 请高手翻译下
Some years ago,industries had more freedom than they have now,and they did not need to be as careful as they must today.They did not need to worry a lot about the safety of the new products that they developed.They did not have to pay much attention to the health and safety of the people who worked for them.Often new products were dangerous for the people who worked for them;often conditions in the work place had very bad effects on the health of the workers.
Memory,like almost everything else about us,is a matter of practice and exercise.Some people seem to be extremely skillful at remembering names or faces or shopping lists.Some people never forget a telephone number.Memorization is a matter of conscious effort and desire.It is easy to remember anything you really want to remember,but something small and commonplace,such as car keys or shopping for a loaf of bread on the way home from the office,somehow gets forgotten.
答案
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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