og12上最后一道不懂的题目。

bhchka

Codex Berinensis, a Florentine copy of an ancient Roman medical treatise, is undated but contains clues to when it was produced . It's first 80 pages are by a single copyist, but the remaining 20 pages are by three different copyists, which indicates some significant disruption. Since a letter in handwriting identified as that of the fourth copyist mentions a plague that killed many people in Florence in 1148, Codex Berinensis was probably produced in that year.
Which of  the following, if true, most strongly supports the hypothesis that Codex Berinensis was produced in1148?
A Other the Codex Berinensis, there are no known samples of the handwriting of the first three copyists.
B  according to the account by the forth copyist, the plague went on for10 months.
C  a scribe would be able to copy a page of text the size and style of Codex Berinesis in a day.
D there was only one outbreak of plague in Florence in the 1100s.
E the number of pages of Codex Berinensis produceed by a single scribe becomes smaller with each successive change of copyist.
答案是D。

qiuhua01234567

background:CB is undated but contains clues to when it was produced . It's first 80 pages are by a single copyist, but the remaining 20 pages are by three different copyists, which indicates some significant disruption.
premise: a plague that killed many people in Florence in 1148
conclusion:Codex Berinensis was probably produced in that year
support.do this type of question.find the gap,remove it.or use the fact to testify it.
A Other the Codex Berinensis, there are no known samples of the handwriting of the first three copyists.
-----------------------------------------------------------------------------------------------------irrelevent
B  according to the account by the forth copyist, the plague went on for10 months.
-----------------------------------------------------------------------------------------------------how long i don't care,i want to konw whether it happened. irrelevent
C  a scribe would be able to copy a page of text the size and style of Codex Berinesis in a day.
----------------------------------------------------------------------------------------------------copy?i don't care.irrelevent
D there was only one outbreak of plague in Florence in the 1100s.
---------------------------------------------------------------------------------------------------correct,use "not".if there several plague,then we can't know when the plague happened.maybe in the 1ST plague,maybe in the 3RD,or other plague.
E the number of pages of Codex Berinensis produceed by a single scribe becomes smaller with each successive change of copyist
---------------------------------------------------------------------------------------------------this just show CB produced by different copyists,irrelevent.