Could you help me with my homework tonight?Which is closest in meaning to the underlined part?
题目
Could you help me with my homework tonight?Which is closest in meaning to the underlined part?
A help,out of B help,to do C stop,from D help ,for
help with 是画线部分,应该选哪个?
答案
当然是选择B了,帮助某人做某事:help sb with sth.或者help sb.to do sth.
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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