牛津英语7B 第6单元 integrated skills 原文,
题目
牛津英语7B 第6单元 integrated skills 原文,
答案
Hello.Today I'd like to tell you about the fantail goldfish. Fatail goldfish can live a long time if you look after them carefully. You must make sure their water is clean and you mustn't pick them up with your hands. You should not put them in the sun.
You should feed them special fish food every day. Sometimes, they eat vegetables too. My fantail goldfish likes to eat peas.
When a fantail goldfish grows up, it can be 20 cm long and weigh about 400 grams. The body of a fantail goldfish is something like an egg. Most fantail goldfish are orange, but sometimes they are black, white or green. They have long, beautiful fins.
Fantail goldfish are nice pets because they're quiet and easy to look after and they aren't expensive to buy.
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
最新试题
热门考点