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单选题
出现什么情况时，进入后货舱的通风气流会被自动停止：ventilation airflow to the aft cargo bay is automatically stopped, if:
A
右循环风扇失效 the right RECIRC fan fails
B
地面活门被命令关闭 the ground valve is commanded closed
C
左空调组件被关闭 the left air conditioning pack is shut down
D
后货舱探测到烟雾 smoke is detected in the aft cargo bay
答案解析
正确答案：D
