The survey——recently showed that about 1.7 billion people all over the world watched the opening

The survey——recently showed that about 1.7 billion people all over the world watched the opening

题目
The survey——recently showed that about 1.7 billion people all over the world watched the opening
opening ceremony of the 29th Olympic Games.
A.carrying out B.carried out C.was carrying out D.was carried out
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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想找英语初三上学期的首字母填空练习……
英语翻译
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