选择填空()3.The work( )at once .A .must do .B.should be done
题目
选择填空()3.The work( )at once .A .must do .B.should be done
()3.The work( )at once .
A .must do .B.should be done
C.is do
()4.The Great Wall()by visitors all over the world every year
A.is visited B.will be visited C.is visiting
()5.I bought two books today .One is in my hand,()is in my bag .
A.the other B.other C.another
()6.We can see ()stars at night if it doesn’t rain
A.thousand of B.thousands C.thousands of
答案
3.B
4.A
5.A
6.C
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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