单项填空.
题目
单项填空.
( ) 1、Are they a bus?
A、wait B、waiting C、wait for D、waiting for
( ) 2、Who Lisa listening
A、is,to B、does,to C、are,to D、do,/
( ) 3、What are the people
A、talk to B、talk about C、talking to D、talking about
( ) 4、Look!Some children at the pool.
A、swim B、are swimming
C、are swimming D、is swimming
( ) 5、The students are waiting the bus station.
A、on B、at C、for D、with
( ) 6、 is your father talking
A、What,to B、Who,to
C、What,/ D、Who,/
( ) 7、— When do you want to go?
— Let’s go .
A、at five o’clock
B、to the shop
C、shopping
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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