—Could you please offer me a job in your company?
—Sorry,I'm afraid it's beyond my________.
A:dream
B:praise
C:power
D:expectation
在南极上空看,甲机沿南极圈作逆时针方向飞行;在北极上空看,乙机沿北极圈作顺时针方向飞行,这两架飞机的飞行方向( )