判断对错.
一个圆的直径等于另一个圆的半径,那么这两个圆的大小相等.
读下列图,判断正确的是( )
已知函数y=f(x)在区间(a,b)内可导,且x0∈(a,b)则limh→0fx0+h-f(x0-h)h 的值为( )
In the future, working hours will be short. ________ people will have a long holiday.