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46. (33987-!-item-!-188;#058&007200)
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?
(A) Due to trade among Native Americans, some European trade goods would have reached the area before the European traders themselves did. (B) At all camps in the region that have been reliably dated to the late 1620's, remains of European trade goods have been found. (C) 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. (D) The first European traders in the area followed soon after the first European explorers. (E) The site is that of a temporary camp that would have been used seasonally for a few years and then abandoned.
C选项说，因为C排出了原来存在欧洲物品但被毁掉了的可能性。也就是说营地里“没有发现”实际就是“没有”,为什么C不对呢？
C选项说，因为C排出了原来存在欧洲物品但被毁掉了的可能性。也就是说营地里“没有发现”实际就是“没有”,为什么C不对呢？
11. (24915-!-item-!-188;#058&001837)
Radio stations with radio data system (RDS) technology broadcast special program information that only radios with an RDS feature can receive. Between 1994 and 1996, the number of RDS radio stations in Verdland increased from 250 to 600. However, since the number of RDS-equipped radios in Verdland was about the same in 1996 as in 1994, the number of Verdlanders receiving the special program information probably did not increase significantly.
Which of the following is an assumption on which the argument depends?
(A) Few if any of the RDS radio stations that began broadcasting in Verdland after 1994 broadcast to people with RDS-equipped radios living in areas not previously reached by RDS stations. (B) In 1996 most Verdlanders who lived within the listening area of an RDS station already had a radio equipped to receive RDS. (C) Equipping a radio station with RDS technology does not decrease the station's listening area. (D) In 1996 Verdlanders who did not own radios equipped to receive RDS could not receive any programming from the RDS radio stations that began broadcasting in Verdland after 1994. (E) The RDS radio stations in Verdland in 1996 did not all offer the same type of programming. 为什么答案是A？谁能翻译一下A选项的意思？ Many thanks!
11. (24915-!-item-!-188;#058&001837)
Radio stations with radio data system (RDS) technology broadcast special program information that only radios with an RDS feature can receive. Between 1994 and 1996, the number of RDS radio stations in Verdland increased from 250 to 600. However, since the number of RDS-equipped radios in Verdland was about the same in 1996 as in 1994, the number of Verdlanders receiving the special program information probably did not increase significantly.
Which of the following is an assumption on which the argument depends?
(A) Few if any of the RDS radio stations that began broadcasting in Verdland after 1994 broadcast to people with RDS-equipped radios living in areas not previously reached by RDS stations. (B) In 1996 most Verdlanders who lived within the listening area of an RDS station already had a radio equipped to receive RDS. (C) Equipping a radio station with RDS technology does not decrease the station's listening area. (D) In 1996 Verdlanders who did not own radios equipped to receive RDS could not receive any programming from the RDS radio stations that began broadcasting in Verdland after 1994. (E) The RDS radio stations in Verdland in 1996 did not all offer the same type of programming. 为什么答案是A？谁能翻译一下A选项的意思？ Many thanks!
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