What do the MACH TRIM FAIL, SPEED TRIM FAIL & AUTO SLAT FAIL lights have in common?
A.A.Will illuminate if both system computers fail
B.B.Will illuminate during Master Caution Recall if only one computer has failed
C.C.Also illuminates the Master Caution & FLT CONT annunciator Lights
D.D.All of the above
正确答案是D