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单选题
The mach trim actuator also causes the elevator to be in a more nose down position during takeoff which allows the pilots to move the stabilizer to a more nose up position.
A
The mach trim actuator make the airplane more nose down by the elevator, the pilots could move the stabilizer to get back nose up position during takeoff.
B
The elevator will be in a more nose down position caused by the mach trim actuator movement, and thereafter the stabilizer could be moved to a more nose up position by pilots during takeoff.
C
The operation of the mach trim actuator and the stabilizer cause the airplane move to different attitude during takeoff, One cause nose down and the other nose up.
答案解析
正确答案：B
