[問題] 關於一題閱讀
Archaeologists studying Bonito phase (ca. A.D. 900-1140) Native American
ceramics from Chaco Canyon, New Mexico, observed that many pots had been
altered after firing to revise their decorative designs--usually,
intricate geometric patterns painted in black on white slipped surfaces.
In some cases, a new design was imposed over an earlier one; less often,
the original design was simply covered with white slip. Crown and Wills
doubt that the alterations were made to correct design errors. Many
Chaco pots with design errors were left unaltered. Furthermore, when
errors were corrected, revisions were made prior to firing—either by
painting directly over the error or by scraping off designs and applying
new slip and paint, which is a less time-consuming method than repainting
and refiring flawed pots.
1. The author of the passage mentions Crown and Wills primarily in order to
A. Distinguish among different factors that might have caused Chaco potters
to alter their pots’decorative designs.
B. Introduce new evidence related to the question of why Chaco potters
altered their pots’decorative designs.
C. Show how one potential explanation for the alteration of Chaco pots has
been discounted.
D. Present a hypothesis about why Chaco pots were altered to revise their
decorative designs.
E. Explain how archaeologists discerned the method by which Chaco pots were
originally decorated.
答案是C，但是我認為是D...
不太懂文章哪裡有說 explanation has been discounted....
請解惑，感謝大家<(_ _)>
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