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单选题
The wheel to rudder interconnect system (WTRIS) assists turns during flight control manual reversion operations when both flight control A and B hydraulics are OFF, and the standby system is ON.
A
The wheel to rudder interconnect system (WTRIS) helps to turn in manual flight control operations meanwhile flight control A and B hydraulics power are OFF, and the alternating system is ON.
B
While both flight control A and B hydraulic system OFF, and the standby system ON, the wheel to rudder interconnect system (WTRIS) helps turning when the manual flight control is reversing.
C
With both flight control A and B hydraulic system OFF, and the standby system ON, the wheel to rudder interconnect system (WTRIS) assists turning in time of restoring manual flight control.
答案解析
正确答案：B
