問題詳情

IV. 文意選填 10%    The driver of a vehicle needs to remain constantly __46__ of his surroundings. In Japan andSouth Korea, engineers have come up with a __47__ way to help keep drivers __48__. It’s calleda melody road.You may have been jarred as you have driven over a rumble strip on a highway. Using thesame basic principle, melody roads don’t give a __49__ rumble, but __50__ they play musical notes.When you drive on one, you actually hear a tune being played.To create a melody road, a __51__ of grooves are cut into the width of the pavement a fixed numberof millimeters __52__. When a car drives over these grooves at a particular speed, they cause thetires to __53__, resulting in a musical note. To get different notes, the __54__ between thegrooves is changed. In South Korea, one of the tunes drivers hear is “Mary Had a Little Lamb.”In Japan, there are the tunes of Japanese folk songs. If you drive over them too fast, you’ll hearthe tune in an __55 __ fast-forward.
46

參考答案

答案：[無官方正解]
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)

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