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单选题
飞行操纵系统信息显示在 EICAS 主页和状态页上。＇STAB TRIM LIMIT＇ 警戒信息意味着：The flight controls system messages are shown on the EICAS primary and status pages. ＇STAB TRIM LIMIT＇ Caution message indicated:
A
左侧和右侧升降舵面不匹配超过 6°(＜250 KIAS) 或 3°(＞250 KIAS). Left and right elevator surface mismatch exceeds 6° (＜250 KIAS) or 3° (＞250 KIAS).
B
马赫配平没有接通或故障或两个通道都故障。Mach trim not engaged or failed on both channels.
C
两个安定面配平通道都没有接通或都故障。Both stab trim channels are disengaged or failed.
D
安定面配平等于或大于 14 个配平单位。Stabilizer trim is at or greater than 14 trim units.
答案解析
正确答案：D
