Why don't you ask your teacher for help?(改为同义句)
____ask your teacher for help?
如图:正△ABC的边长为1,将一条长为2015的线段的一端固定在C处按CBAC…的规律紧绕在△ABC上,则线段的另一端点所在位置的坐标为____.
读“黄土高原示意图”,完成下列要求:
=4 =2 =5
+ =____
- =____