2. 外语
  3. Documents______(被化学物质处理的)will not become yellow with age.

Documents______(被化学物质处理的)will not become yellow with age.

admin2010-05-26  20
问题 Documents______(被化学物质处理的)will not become yellow with age.
选项
答案treated with chemicals
解析 本题中，动词过去分词作后置定语表被动。
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大学英语四级

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