A:26°
B:30°
C:32°
D:64°
下列图形中,是中心对称图形的是( ).
As is often the case, little Tom, if ____________, is most likely to stop crying soon.
图中a、b两点纬度相同,但地球自转的线速度明显不同,原因是( )
This is_____ Peter.