The individual passenger mask deployment is initiated automatically or manually. 翻译成汉语: 各旅客（氧气）面罩的使用, 被自动或手动起始.
A.1
正确答案是A
The individual passenger mask deployment is initiated automatically or manually. 翻译成汉语: 各旅客（氧气）面罩的使用, 被自动或手动起始.
A.1
正确答案是A