2. 职称英语
  3. Art can be made of almost anything, including substances 【M

Art can be made of almost anything, including substances 【M

游客2024-12-15  29
问题     Art can be made of almost anything, including substances                  【M1】______
that have not been produced and used in ages, and it comes in all shapes and sizes.
More importantly, scientists have to study art without affecting it,          【M2】______
and that usually means limited, destructive tests.                            【M3】______
If they have to take a sample, it must be as small as possible.
In the objects conservation lab,
the big samples look as the period at the end of this sentence.               【M4】______
Small samples are microscopic. The scientists have developed
creative ways to deal the constraints. Consider the case of the fish penda    【M5】______
Gold with multicolored enamel, it was originally thought to date in the 16th century.【M6】______
And curators and conservators saw that the style was all wrong for that period.【M7】______
It was either mislabeled or a pretence. Mark Wypyski, a glass specialist who runs【M8】______
the scanning electron microscope at the museum, took a tiny porcelainlike sample
from a green part of the pendant and bombarded it with electrons, causing it
to emit X-rays characteristic of the elements in it. Mr. Wypyski interpreted
the results as they popped on a computer monitor.                             【M9】______
There was chromium, which was not used in glass or enamels
since the 19th century.                                                       【M10】______ [br] 【M6】
选项
答案 in改成from
解析 固定搭配。可以“追溯到……时候”是固定短语date from。
转载请注明原文地址:https://www.tihaiku.com/zcyy/3875918.html
相关试题推荐
随机试题
最新回复(0)