单选题
这个原理图的使用者是飞行员。
A
A.The user of this schematic diagram is the mechanic.
B
B.The user of this schematic diagram is the pilot.
C
C.The user of this schematic diagram is the flight attendant.
答案解析
正确答案:B
相关知识点:
原理图使用者是飞行员,选The user of this schematic diagram is the pilot
