Dear Dr Know, I’m not happy. 答案
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Dear Dr Know, I’m not happy. 答案
Dear Dr Know, I’m not happy. I have too __1_ rules in my family. I have to __2___ at 6:00 every morning. I can’t __3__ my friends after school __4__I have to __5__my dog for a walk. I can’t watch TV on school nights. And I have to __6_ in bed by ten o’clock. _7__ weekends, I have to clean my room and wash my clothes. Then I have to help my mother __8__ dinner. Later I have to go to the Children’s Palace __9__ the piano. I never have any fun. __10__ can I do? 1. A. many B. much C. a few 2. A. go to bed B. get up C.go home 3. A. watch B. look C. meet 4. A. so B. then C. because 5. A. bring B. take C. carry 6. A. be B. is C. am 7. A. In B. On C. At 8. A. make B. making C. do 9. A. learn B. to learn C. learning 10. A. Why B. What C. How
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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