根据首字母提示完成短文(八上寒假作业)
题目
根据首字母提示完成短文(八上寒假作业)
When Mary Smith was a student,she always wanted to be a t___,because she liked children.When she was twenty-two y___ old,she began teaching in a small s___.She was a good teacher.The c___ liked to come to her class.One day,one of the girls in her class said to her,"Miss Smith,why does a m___ hair become white before his beard?"Mary laughed and a___,"I don`t know,but it h___ to my father!"The other children laughed when they h___ this.Then on of the boys said,"I know,Miss Smith.Men`s hair b___ white because it`s sixteen years o___ than their beard."
答案
teacher
years
school
children
man's
answered
happened
heard
become
older
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.
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