A:Quite by accident
B:Well, the style is out of date
C:The department store is selling everything at a discount
D:It washes very well
读拼音,写生字。
jiě jie yé ye
____读书,____读报。
ér gē
妹妹读____,喜鹊枝头叫。
如图,在△ABC中,AB=AC=20cm,DE垂直平分AB,垂足为E,AC于D,若△DBC的周长为35cm,则BC的长为( )