有关纬线的叙述,正确的是( )
A:纬线的形状是半圆
B:纬线的长度都相等
C:赤道是南北纬度的起始线
D:纬线指示南北方向
A. Great!
B. It's near the post office.
C. I go by ship.
D. She goes home by taxi.
E. Yes, you can.