2015年Bebras挑战练习题-Cross Country（越野）

Three very fast beavers will compete in a cross-country run.

三只非常敏捷的海狸将参加一场越野赛跑。

Mr. Brown will overtake one beaver when running uphill.布朗先生在上坡跑时会超过一只海狸。
Mrs. Pink will overtake one beaver when running downhill.平克夫人在下坡跑时会超过一只海狸。
Mrs.Green will overtake one beaver when running across rocks.格林夫人在岩石上奔跑时会超过一只海狸。

The terrain is shown in the picture: uphill, followed by some rocks, downhill and then some more rocks.

地形如图所示：先是上坡，接着是一些岩石，然后是下坡，最后还有一些岩石。

Mrs. Pink starts in the first position, followed by Mr. Brown and Mrs. Green.

平克夫人排在第一位，接着是布朗先生和格林夫人。

Question: 问题:

In which order will the beavers finish the race?海狸们会以怎样的顺序完成比赛？

A. Mr. Brown, Mrs. Green, Mrs. Pink

B. Mrs. Pink, Mr. Brown, Mrs. Green

C. Mr. Brown, Mrs. Pink, Mrs. Green

D. Mrs. Green, Mrs. Pink, Mr. Brown

 

 

 

 

Explanation 解释