A:AAA
B:GTA
C:UUU
D:GGC
鸽子远距离飞行不会迷失方向.其原因是鸽子根据什么来辨别方向?
求证:四边形AECF是平行四边形.
Great changes have taken place in our city in the past ten years. Everything ______comes into sight is so new to me.