Tom some pigs and ducks in his family.
A:supports
B:feeds
C:raises
如图,在△ABC中,AB<AC,BC边上的垂直平分线DE交BE于点D,交AC于点E.若AC=8cm,△ABE的周长为15cm,则AB的长为( )
下列有关细胞中基因的叙述,正确的是