——The little girl often has nothing for breakfast, ________she?——_______. Because she often gets up late and is afraid of being late for school.
A:has; Yes
B:doesn't; No
C:does; No
D:hasn't; Yes
下列哪个是电场强度的单位( )
如图,在△ABC中,AB=AC,∠BAC=50°,D是BC边的中点,连接AD,则∠BAD= ____