The main point of the passage is ______. [br] The advantage of chevrons over str

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问题 The main point of the passage is ______. [br] The advantage of chevrons over straight horizontal bars is that the former ______.

选项 A、can keep drivers awake
B、can cut road accidents completely
C、will have a longer effect on drivers
D、will look more attractive

答案 C

解析本题考查对文章重要情节或细节理解的准确性。本文中人字形线区别于垂直横线正是重要细节，人字形线的优越之处在于它能在较长的时间内对驾驶人员起作用。可见，本题的答案是C项。

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