We may conclude from reading the passage that ______.A.a hovercraft can not fly high becau
We may conclude from reading the passage that ______.
A.a hovercraft can not fly high because of the surrounding high-pressure air
B.a hovercraft is as much in use as a plane
C.a hovercraft "flies" with a greater speed than ships
D.a hovercraft also has the problem of wave resistance