短文改错.Dear friends,
题目
短文改错.Dear friends,
Welcome to our country. I am very glad to be you guide. 41.__________
Now, I’d like to tell you something more about the Great 42.__________
Wall of China. The Great Wall had a history of over 2000 43.__________
years. It is considered to be one of the wonder in the world. 44.__________
The Great Wall is 6000 kilometers long, 6-7meters high but 45.__________
4-5 meters wide. Today the Great Wall has become place of 46.__________
interest. And it was built by the worked people thousands of 47.__________
years ago. So the Chinese are considered to be one of the 48.__________
great and hard-working people in the world. We are all pride. 49.__________
That’s all. I wish you will enjoy your visit here. 50._____
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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