For our B787, reduced power climb thrust is maintained until ( ) feet, then thrust increases linearly with altitude, reaching CLB thrust at ( ) feet.
A.25000 30000 B.20000 29000 C.25000 33000 D.23000 31000正确答案C
For our B787, reduced power climb thrust is maintained until ( ) feet, then thrust increases linearly with altitude, reaching CLB thrust at ( ) feet.
A.25000 30000 B.20000 29000 C.25000 33000 D.23000 31000正确答案C
