2015年Bebras挑战练习题-Bracelet（手镯）

Emily has broken her favorite bracelet. The broken bracelet now looks like this:

艾米丽弄坏了她最喜欢的那条手链。这条断了的手链现在看起来是这样的：

Question: 问题:

Which of the following four bracelets shows what the bracelet looked like when it was whole?

以下四个手镯中，哪一个显示了手镯完好无损时的样子？

 

 

 

 

Explanation 解释

The correct answer is:  正确答案是：This bracelet follows the beads in the same order as the broken bracelet. With the bracelets, you notice that either the orange triangle and yellow star are swapped, or the orange triangle and blue hexagon beads are in the wrong place, or that the yellow star and green oblong beads are in the wrong place.

这条手链上的珠子顺序与断掉的手链相同。观察这两条手链，你会发现要么橙色三角形和黄色五角星的位置互换了，要么橙色三角形和蓝色六边形的珠子位置不对，要么黄色五角星和绿色长方形的珠子位置不对。