— Excuse me, are there any book stores around here?
— , but there are some on the Center Street.
A:Yes, there are
B:No, there aren't
C:Yes, there is
D:No, there isn't
说说下面句子的用法
山羊说:“我同你一起吃草!”
从直线外一点向直线画一条垂直线段,再画几条不垂直的线段,其中____线段最短。