A:女娲造人
B:上帝创造人类
C:猴子变的
D:古猿进化而来
My study in junior high school is coming to an end. It's time ____us_______.
如图,AB∥CD,BE与EF垂直相交于点E,EF与CD相交于点F,∠B=30°.则∠EFD的度数是( )