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题库 / Prep2007E1-CR-46
Archaeologists in Michigan have excavated a Native American camp near Dumaw Creek. Radiocarbon dating of animal bones found at the site indicates that the camp dates from some time between 1605 and 1755. However, the camp probably dates to no later than 1630, since no European trade goods were found at the site, and European traders were active in the region from the 1620's onward.
Which of the following, if true, most strengthens the argument?
Due to trade among Native Americans, some European trade goods would have reached the area before the European traders themselves did.
At all camps in the region that have been reliably dated to the late 1620's, remains of European trade goods have been found.
The first European trade goods to reach the area would have been considered especially valuable and preserved as much as possible from loss or destruction.
The first European traders in the area followed soon after the first European explorers.
The site is that of a temporary camp that would have been used seasonally for a few years and then abandoned.
background：对于一个camp里面挖出来的动物骨头鉴定，发现camp起源于1605-1755之间
P: 因为site里没有发现欧洲贸易货物，而欧洲商人只在1620年代以后才在这块地区活动-> C：camp的出现不会晚于1630年
choice b, 所有被可靠得鉴定晚于1620年以后出现的camp，都找到了欧洲贸易品。correct
choice c, 第一批出现的欧洲贸易品会被认为特别珍贵因此好好保存下来。-> would have been只是说应该是这样， 依然没有排除missing，destroyed的可能性
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