单项选择题
For a commuter trip of 500 miles, about how much less fuel would maglev train use compared to a small plane
A) 25%. C) 75%.
B) 50%. D) 80%.
A.For a commuter trip of 500 miles, about how much less fuel would maglev train use compared to a small plane
B.25%.
C.50%.
D.75%.
E.80%.