if从句的简化 将if从句换一种表达方式避免单调乏味 例子或者简化方式
题目
if从句的简化 将if从句换一种表达方式避免单调乏味 例子或者简化方式
答案
if it rains,i will stay at home.
in case that it rains,it rains,i will stay at home.
Once it rains,i will stay at home.
As long as it rains,i will stay at home.
if it doesn't rain,i will stay at home.
Unless it rains,i will stay at home.
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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