英语单项选择:
题目
英语单项选择:
1.Where was Alice’s sister?I don’t know where ________.
A.was Alice’s sister B.Alice’s sister was
C.is Alice’s sister D.Alice’s sister is
2.What did he say?I don’t know what _________.
A.did he say B.he says C.he has said D.he said
3.I don’t know ___________.
A.the reason why can be B.why the reason may be
C.what the reason can be D.what the reason may be
4.I wonder ___________ .which of the following is not the right choice?
A.whether she will be fit for the job or not B.whether or not she will be fit for the job
C.if she will be fit for the job D.what she will be fit for the job
5.Is Mr.Wu from Beijing?I don’t know ________.
A.where does he come from B.from where does he come
C.which city he comes from D.what city he comes from
6.Can you make sure ___________?
A.that he will come here today B.when he will come here today
C.will he come here today
D.whether will he come here today
7.Do you happen to k
答案
BDCDD;ACDCA
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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