Excavations at a Mayan site have uncovered jewelry workshops located some distance from the center of the site on roads radiating outward from the center. Since the nobility lived only in the area of the center, archaeologists conclude that these workshops made jewelry, not for the nobility, but for a middle class that must have been prosperous enough to afford it.
The archaeologists’ argument assumes which of the following about the artisans who worked in the workshops
A．They were themselves prosperous members of a middle class.
B．They lived near their workshops.
C．Their products were not made from the same materials as was jewelry for the nobility.
D．They worked full-time at making jewelry and did not engage in farming.
E．(E) They did not take the jewelry they had made in the workshops to clients who were members of the nobility.
参考答案：E
解析： 本题属于典型的由一个discovery而得出一个结论的“B，A”型，假设多为除了A以外没有别的原因导致B，用否定概念来进行定位，发现(C)、(D)、(E)中否定词not，(E)说明手工艺人不把他们在作坊中制造的珠宝交给贵族顾客，也就说明了珠宝确实不是供给贵族的，因此(E)正确；(C)中出现的materials为新概念；(D)与“贵族或中产阶级”无关，必然不对。