— What time do you usually _________ every day?
—At seven o' clock. And then I will prepare breakfast for my son.
A:set up
B:take up
C:get up
如图,已知AD、BC相交于点O,AB∥CD∥EF,如果CE=2,EB=4,FD=1.5,那么AD=____ .
15-9=____
8-3=____
9+3=____
14-4=____
已知奇函数f(x)当x>0时的解析式为f(x)= 1x2+1 ,则f(﹣1)=____.