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问题 选择题

_____are my two brothers.  And _____my sister.        [ ]

A. Their, their

B. Our, they  

C. Those, Those

D. Those, that's

答案

答案：D

选择题

常温时，将的醋酸滴加到的烧碱溶液中，下列结论正确的是

A．若混合溶液的，则混合溶液中

B．若混合溶液的，则混合溶液中

C．若，且混合溶液，则必有

D．若，，则混合溶液中
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单项选择题

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.
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