Did your brother have a good time?(作肯定回答)
Yes, ____ ____ .
已知函数y=lnx的定义域A,B=x|0≤x≤1,则A∩B=( )
30+15-20=____
54-20-8=____
72-6+30=____
62-9+6=____
40+50+6=____
58+20-60=____