【单选题】L isten to the transmission or short exchange and choose the correct answer .
A.
Join right hand downwind at 3000ft
B.
Join right hand downwind at 2500ft
C.
Join left hand downwind at 3000ft
D.
Join left hand downwind at 2500ft
【单选题】L isten to the transmission or short exchange and choose the correct answer .
A.
Backtrack and vacate runway 04
B.
Turn left onto taxiway A4 proceed to C3
【单选题】若 5 x + 2 与- 2 x + 7 的值互为相反数,则 x - 2 的值为( )
【单选题】若多项式3x 2 -2(5+y-2x 2 )+mx 2 的值与x的值无关,则m等于( )
【简答题】若5x 2 y m 与-7x n y 3 是同类项,则m-n=( )。
【简答题】若多项式2mx 2 -x 2 +5x+8-(7x 2 -3y+5x)的值与x无关,求m 2 -[2m 2 -(5m-4)+m]的值.