【简答题】在同一平面直角坐标系中,已知函数 的图象与 的图象关于直线 对称,则函数 对解析式为 ;其应的曲线在点( )处的切线方程为 .
【单选题】The businessman wanted to ______ the adversary into concluding this transaction.
【单选题】It is implied in the concluding paragraph that ______.
A.
European old member countries are poor and homogenous
B.
Europe's leaders are bewildered by the crucial summit
C.
Europe's politicians should heed their voters' dissatisfaction
D.
European coincidences might emerge due to the economic stagnation
【多选题】A concluding paragraph ___________.
A.
generally summarizes the essay.
B.
presents the main idea of the essay.
C.
gives an overall solution to a problem or argument given in the essay.
D.
begins general and ends specific.
【简答题】已知函数f(x)=x 2 -(a+2)x+alnx,其中常数a>0. (1)当a>2时,求函数f(x)的单调递增区间; (2)当a=4时,是否存在实数m,使得直线6x+y+m=0恰为曲线y=f(x)的切线?若存在,求出m的值;若不存在,说明理由; (3)设定义在D上的函数y=h(x)的图象在点P(x 0 ,h(x 0 ))处的切线方程为l:y=g(x),当x≠x 0 时,若 h(x)-g(x) x...
【单选题】教师之间,教师与学生,教师与走进学校的教学研究者、专家之间的相互学习与研究活动以及教师走进社区的实践活动,这就是教师的
【判断题】安装电磁离合器时,若空气间隙不合适时,应根据需要增减垫
【简答题】在同一平面直角坐标系中,已知函数y=f(x)的图象与y=e x 的图象关于直线y=x对称,则函数y=f(x)对解析式为 ______;其应的曲线在点(e,f(e))处的切线方程为 ______.
【判断题】安装电磁离合器时,若空气间隙不合适时,应根据需要增减垫片