一道英语选择题:-----the policeman heard the cry for help,he rushed out of the room.
题目
一道英语选择题:-----the policeman heard the cry for help,he rushed out of the room.
a.though b.now that c.as soon as d.while.
选哪个?请告诉我原因和这四个选项的区别.
答案
答案选 c.as soon as 一…就…
警察一听到喊救命,就立刻冲到房间去.
a.though conj.虽然;尽管
b.now that既然;由于
d.while conj.虽然;然而;当……的时候
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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