--Tim will( )the Oral English Contest next week.
题目
--Tim will( )the Oral English Contest next week.
--Great.( ) a good chance for him to pratise English.
A.join in; That's B.join; It's C.take part; That's D.take part in; It's
--What is wrong with Marry,Mr Wang?
--She is( )hurt,so we ( )send her to hospital now.
A.badly; mustn't B.badly; have to C.bad; can't D.bad;may
--Tom,you should be careful when you are( )outside.
--Don't ( )me,Mum.
A.lonely;worry B.alone;worry about C.alone;worry D.lonely;worry about
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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