题目内容
The main difference between rotorcraft and helicopter is that ____.
查看答案
搜索结果不匹配？点我反馈
更多问题
The “Cassini-Huygens” Saturn probe took ____ to reach the orbit around Saturn.
The most widely used manned space vehicle is ____.
Two main landing gears at the rear of the aircraft's center of gravity, with a nose landing gear at the front is the layout structure of ____.
The take-off deck of an aircraft carrier usually is ____ long.
微信支付 
支付宝支付