The takeoff direction which is into the wind, which means wind direction is _______.
A.0 degree
B.180 degrees
C.90 degrees
D.270 degrees
正确答案是C
The takeoff direction which is into the wind, which means wind direction is _______.
A.0 degree
B.180 degrees
C.90 degrees
D.270 degrees
正确答案是C