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发布时间：2006-06-22 13:16     点击：

　Tansac borders on Sukor.

In coloring the regions, the restriction must be met that a region

cannot be colored the same color as any region on which it borders

Which of the following is an acceptable choice of colors for the six regions?

Nuria Orton Petria Robinia Sukor Tansac 　

Gold Jade Jade Lavender Jade Maroon 　

Gold Jade Maroon Jade Lavender Gold

Gold Lavender Gold Maroon Maroon Gold

Jade Maroon Lavender Gold Jade Jade

Jade Maroon Lavender Maroon Lavender Gold

————————————————————————

答案：(B)

读题：地图上6个区域每块是以下四种颜色之一：g.j.l.m，6个区域为：N.O.P.R.S.T

写条件：

相邻的区域不能同色。(这道题目与No题上的地图着色题目完全类似)

If Petria is colored gold, which of the following

regions could also be colored gold?

Nuria

Orton

Robinia

Sukor

Tansac

————————————————————————

答案：(E)

读题：地图上6个区域每块是以下四种颜色之一：g.j.l.m，6个区域为：N.O.P.R.S.T

写条件：

相邻的区域不能同色。(这道题目与No题上的地图着色题目完全类似)

If Tansac is colored jade and if as many of the other

regions as possible are to be colored jade, which of the

following must be among the regions colored jade?

Nuria

Orton

Petria

Robinia

Sukor

————————————————————————

答案：(D)

读题：地图上6个区域每块是以下四种颜色之一：g.j.l.m，6个区域为：N.O.P.R.S.T

写条件：

相邻的区域不能同色。(这道题目与No题上的地图着色题目完全类似)

If a total of three colors is to be used and each will

be used to color two of the regions, any of the following

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