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　　GMAT逻辑题题目:

　　逻辑

　　The earliest Mayan pottery found at Coiha, in Belize, is about 3,000 years old. Recently, however, 4,500-year-old

　　stone agricultural implements were unearthed at Colha. These implements resemble Mayan stone implements

　　of a much later period, alsofound at Colha. Moreover, the implements' designs are strikingly different from the

　　designs of stone implements produced byother cultures known to have inhabited the area in prehistoric times.

　　Therefore, there were surely Mayan settlements in Colha 4,500 years ago.

　　Which of the following, if true, most seriously weakens the argument?

　　(A) Ceramic ware is not known to have been used by the Mayan people to make agricultural implements.

　　(B) Carbon-dating of corn pollen in Colha indicates that agriculture beganthere around 4,500 years ago.

　　(C) Archaeological evidence indicates that some of the oldest stone implements found at Colha were used to

　　cut away vegetation after controlled burning of trees to open areas of swampland for cultivation.

　　(D) Successor cultures at a given site often adopt the style of agricultural implements used byearlier

　　inhabitants of the same site.

　　(E) Many religious and social institutions of the Mayan people who inhabited Colha 3,000 years ago relied on

　　a highly developed system of agricultural symbols.

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