I like watching ( )news( )TV.A.an,on B.an at C.不填,at D.不填,on
题目
I like watching ( )news( )TV.A.an,on B.an at C.不填,at D.不填,on
Tony,plese go to the store after you finish( )lunch.A.eat B,eating C.eats D.to eat
答案
I like watching ( )news( )TV.A.an,on B.an at C.不填,at D.不填,on选项是 D因为news是不可数名词,不用不定冠词.Tony,plese go to the store after you finish( )lunch.A.eat B,eating C.eats D.to eat选项是B因为f...
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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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