求写一篇200到300词的英语口语作文
题目
求写一篇200到300词的英语口语作文
话题是Why is it important to receive vaccinations when travelling to foreign countries or regions?
答案
The most important reason why receiving vaccinations before travelling aboard is that we may avoid local sickness.Vaccination can protect you against becoming infected with a range of serious diseases such as cholera,yellow feverand tick-borne encephalitis.
These vaccines are recommended to protect travelers from illnesses present in other parts of the world and to prevent the importation of infectious diseases across international borders.Which vaccinations you need depends on a number of factors including your destination,whether you will be spending time in rural areas,the season of the year you are traveling,your age,health status,and previous immunizations.
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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