实在想破脑袋也没转过弯来 求指导

daisydaisytian

Excavations of the Roman city of Sepphoris have uncovered numerous detailed mosaics depicting several readily identifiable animal species:a hare, a partridge, and various Mediterranean fish.Oddly, most of the species represented did not live in the Sepphoris region when these mosaics were created.Since identical motifs appear in mosaics found in other Roman cities, however, the mosaics of Sepphoris were very likely created by traveling artisans from some other part of the Roman Empire.

Which of the following is an assumption on which the argument depends?

A. The Sepphoris mosaics are not composed exclusively of types of stones found naturally in the Sepphoris area.

B. There is no single region to which all the species depicted in the Sepphoris mosaics are native.

C. No motifs appear in the Sepphoris mosaics that do not also appear in the mosaics of some other Roman city.

D. All of the animal figures in the Sepphoris mosaics are readily identifiable as representations of known species.

E. There was not a common repertory of mosaic designs with which artisans who lived in various parts of the Roman Empire were familiar.

daisydaisytian

为什么不选C项？

dedeyuky

同问！！

wycg

C是无关项.它不能成为题干的条件. 你说说你怎么理解C的呢?

chasingM7

Conclusion: the mosaics of Sepphoris were very likely created by traveling artisans from some other part of the Roman Empire

Premise: 1) Excavations of Roman city of Sepphoris uncovered things that didnt live in Sepphoris
             2) same things were found in other Roman city

Assumption?

if you negate E, the conclusion falls apart. because if E happened, it can also perfectly explain why these "Uncovered things" were uncovered in different cities.

C) it is irrelevant. ==> all "things" found in S can be found in other cities. this is more like a restatement of the premise to me.

hope it helps.

daisydaisytian

C项感觉就是又把题目中的条件陈述了一遍

daisydaisytian

恩呢  多谢  貌似理解了

fancy3667

请问这道题是怎么理解的呢？为什么E选项可以成为assumption呢？