曲线在点(0,-1)处的切线方程为________.
如下图,六边形ABCDEF是平面与棱长为2的正方体所截得到的,若A、B、D.B分别为相应棱的中点,则六边形ABCDEF的面积为()
设曲线y=ax^2+2x在点(1,a+2)处的切线与直线y=4x平行,则a=()
Thedetailedanalysesofthirdandfourthquartersalesareincludedin___finalreport
Themanagergaveherhis_____thatthecomplaintwouldbeinvestigated.