应该是很有基础)
题目
应该是很有基础)
将人名与相应的信息匹配
A.Celine Dion
B.Bill Gates
C.Thomas Edison
D.Norman Bethune
E.Mark Twin
1.a doctor;born in 1890 in Canada;came to China in 1938.
2.a singer;born in 1968 in Montreal,Canada;sang My Heart Will Go On for the film Titanic( )
3.born in 1874 in Kentucky,the US;made over 1,000 inventions.( )
4.a writer;born in 1835 in the Us;wrote The Adventures of Tom Sawyer
5.born in 1955 in the US;owns Microsoft Corporation.( )
答案
A对应2
B对应5
C对应3
D对应1
E对应4
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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