The Wright brothers searched for ways to control the balance of airborne machines by ______.
Câu hỏi:
The Wright brothers searched for ways to control the balance of airborne machines by ______.
A. shifting body in the desired direction
B. creating enough lifts power for the gliders
C. making numerous gliders with light wings
Trả lời:
Dẫn chứng “This idea was repellent to the Wright brothers … abandon their efforts.”
Chọn B