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发布时间：2006-06-22 13:17     点击：

　　Which of the following could be the colors of the balls under the cups, in　order from 1 through 6 ?

　　Green, yellow, magenta, red, purple, orange

　　Magenta, green, purple, red, orange, yellow

　　Magenta, red, purple, yellow, green, orange

　　Orange, yellow, red, magenta, green, purple

　　Red, purple, magenta, yellow, green, orange

　　答案：(C)

　　If the magenta ball is under cup 4, the red ball must be under cup

　　1

　　2

　　3

　　5

　　6

　　答案：(C)

　　A ball of which of the following colors could be under cup 6 ?

　　Green

　　Magenta

　　Purple

　　Red

　　Yellow

　　答案：(E)

　　If the purple ball is under cup 4, the orange ball must be under cup

　　1

　　2

　　3

　　5

　　6

　　答案：(E)

　　Which of the following must be true?

　　The green ball is under a lower-numbered cup than the yellow ball.

　　The orange ball is under a lower-numbered cup than the green ball.

　　The purple ball is under a lower-numbered cup than the green ball.

　　The purple ball is under a lower-numbered cup than the red ball.

　　The red ball is under a lower-numbered cup than the yellow ball.

　　答案：(C)

　　If the orange ball is under cup 2, balls of which of the following colors　could be under cups immediately adjacent to each other?

　　Green and magenta

　　Green and purple

　　Orange and yellow

　　Purple and red

　　Red and yellow

　　答案：(A)

　　If the magenta ball is under cup 1, balls of which of the following colors　must be under cups immediately adjacent to each other?

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