五带中,四季变化最明显的是①热带 ②北温带 ③北寒带 ④南温带 ⑤南寒带
A:①
B:②③
C:②④
D:③⑤
Most of the students in our city go to school by ______ baik.
关于我国降水时空分布的叙述正确的是( )