下载APP
【多选题】
Countries that can launch lunar probes includes: ____.
A.
The United States
B.
Russia
C.
China
D.
India
举报
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】The most widely used manned space vehicle is ____.
A.
Manned spacecraft
B.
Space shuttle
C.
Aero-space plane
D.
Carrier rocket
【多选题】Main advantages of space shuttle over spacecraft are ____.
A.
Large payload
B.
Easy to take-off and landing
C.
Reusable
D.
More functional
【单选题】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 ____.
A.
Tail-wheel tricycle landing gear
B.
Nose-wheel tricycle landing gear
C.
Bicycle landing gear
D.
Multiple-wheel-and-struts landing gear