单项选择题
A.应急门也属于登机门 B.勤务门是指飞机右侧的门 C.767飞机各有3个登机门和勤务门 D.登机门是指飞机左侧的门
A.只能从飞机内部解除 B.只能从飞机外部解除 C.既可以从飞机内部解除,又可以从飞机外部解除
A.737-300(2);737-400(2);737-700(4);737-800(4) B.737-300(2);737-400(4);737-700(2);737-800(4) C.737-300(2);737-400(4);737-700(4);737-800(4) D.737-300(2);737-400(2);737-700(2);737-800(4)