A-A+
Paragraph 6 __________ 查看材料A.The main componen
问题详情
Paragraph 6 __________ 查看材料
A.The main components of the maglev train system
B.High-speed maglev due to zero friction
C.The working principle of the maglev train
D.Differences between polarity and magnetic field
E.Comparison of maglev trains with traditional ones
F.Maglev with a powerful motor请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：B
在第五段解释了磁浮列车浮起和向前运动的原理之后，作者在第六段中解释了磁浮列车速度奇快的原因：去除了传统火车的车轮与铁轨的摩擦。8选项说高速源于零摩擦，是正确的。
