用a,an,the或“/”填空 1.________Washington is _______capital of ________United States of America.
题目
用a,an,the或“/”填空 1.________Washington is _______capital of ________United States of America.
2.There is _________”A” on his paper.3.I ate ______apple .It’s _______red apple.4._______tall man over there is my boss.5._______earth moves around sun.6 .No news is ________good news.7.Have you visited Great Wall?8.They often play football after school.9.Children need love and attention.10.Are there any birds in sky?11.student in the third row is tallest in our class.12.Did you have breakfast this morning?13.Mr.White will go to Tokyo by air.14.By way,do you know old woman in glasses?
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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