3.——( )has he been in Beijing —— Since he was three years old.
题目
3.——( )has he been in Beijing —— Since he was three years old.
A How soon B How long C How often D when
4.He tried ( )out the problem,but he failed.
A to work B working C work D worked
5.The doctor looked ( )him and then told him that there was nothing wrong with him.
A after B over C through D in
6.How often do you eat ( )and (
A vegetable fruits B vegetables fruits C vegetables fruit D vegetable fruit
1.I was ( )last night and became a ( )man.
A ill ill B sick sick C ill sick D sick ill
2.She is ( ) quiet girl and hardly speaks to her classmates.
A such B so C such a D so a
3.There are ( )many interesting books in the library that we like to read books there.
A such B so C such a D so a
4.He runs ( )fast that nobody can catch up with him.
A such B so C such a D so a
5.She is a careful student ,and there are ( )mistakes in his paper.
A a few B a little C few D little
6.There is only ( )milk in the glass and help
答案
D A B B C C B A C B B D
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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