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题库 / OG2017V-CR-188
Commemorative plaques cast from brass are a characteristic art form of the Benin culture of West Africa. Some scholars, noting that the oldest surviving plaques date to the 1400s, hypothesize that brass casting techniques were introduced by the Portuguese, who came to Benin in 1485 A.D. But Portuguese records of that expedition mention cast-brass jewelry sent to Benin's king from neighboring Ife. So it is unlikely that Benin's knowledge of brass casting derived from the Portuguese.
Which of the following, if true, most strengthens the argument?
The Portuguese records do not indicate whether their expedition of 1485 included metalworkers.
The Portuguese had no contact with Ife until the 1500s.
In the 1400s the Portuguese did not use cast brass for commemorative plaques.
As early as 1500 A.D., Benin artists were making brass plaques incorporating depictions of Europeans.
Copper, which is required for making brass, can be found throughout Benin territory.
D/E无关选项，A选项起到undermine the argument的作用。C选项，在1400s，葡萄牙人没有使用黄铜铸造技术铸造纪念碑，这并不能说明葡萄牙人没有在1400s将黄铜铸造结束传入Benin，不能起到strengthen the argument的作用。B选项，直到1500s，葡萄牙人都没有和Ife人接触过，而文中说cast-brass jewelry sent to Benin's king from neighboring Ife。因此足以说明，knowledge of brass-casting 不是来自葡萄牙。
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