单选题Which of these is untrue for the present bicycle?AIt is far more efficient than the movement of animals.BIt offers its rider no protection.CIt is not very suitable for carrying goods.DIt can hardly be improved on.
单选题
Which of these is untrue for the present bicycle?
A
It is far more efficient than the movement of animals.
B
It offers its rider no protection.
C
It is not very suitable for carrying goods.
D
It can hardly be improved on.
参考解析
解析：
本题可参照文章的第三段。第三段介绍了如何通过改造来克服自行车的缺点，因此D项为正确答案。
本题可参照文章的第三段。第三段介绍了如何通过改造来克服自行车的缺点，因此D项为正确答案。
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