A.逆转,由NW转SW B.顺转,由SW转NW C.逆转,由SW转NW D.顺转,由NW转SW
A.暖锋前部冷空气和冷锋后部冷空气 B.暖锋前部暖空气和冷锋后部冷空气 C.暖锋前部冷空气和冷锋后部暖空气 D.暖锋前部暖空气和冷锋后部暖空气