I.Fill in the blanks with the given words in their proper forms.(用所给词的适当形式填空)(5%)
题目
I.Fill in the blanks with the given words in their proper forms.(用所给词的适当形式填空)(5%)
1.Helen has been expecting the _______ of her net-pal since last Thursday.(arrive)
2.My trousers are a bit too long.Would you mind _______ it by two inches for me?(short)
3.Now China has become much ________ with the development of modern science and technology.(power)
4.During rush hours underground trains are always ______ because they are quicker and more convenient.(fill)
5.The Tangshan Earthquake was the deadliest earthquake in the ______ century in Chinese history.(twenty)
答案
1.arrival
2.shortening
3.powerful
4.full
5.twentieth
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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