"The fuselage is divided into three reference planes measured in

"The fuselage is divided into three reference planes measured in inches,they are body station,body buttock line,body waterline." the avove sentence means “机身可以分成采用英寸测量的3个基准平面,它们是:机身站位,机身纵剖线,机身水线.”

A.1

正确答案是A