单选题
如果选择N2风扇同步，则右发N2值的差异必须在什么范围？For N2 synchronization to be enabled, the right engine N2 must be within ___%
A
相对于左发N2差异在1.5% 1.5% of the left engine N2.
B
相对于左发N2差异在2.5% 2.5% of the left engine N2.
C
相对于左发N2差异在3.5% 3.5% of the left engine N2.
飞机试题CRJ900题库练习
