Idon'tknowhowwecanmake________onthetimetableforanymorecourses.

设f(x,y)在点(0,0)附近有定义,且,则

Sixtypercentoftelevisionviewerschosehimastheir_______actor.

过(0,1)点作曲线L:y=lnx的切线,切点为A,又L与x轴交于B点,区域D由L与直线AB围成,求区域D的面积及D绕x轴旋转一周所得旋转体的体积.

Somemoleculesarelargeenough________(see)undertheelectronicmicroscope.