2. 外语
  3. Hikers and campers often become infected by drinking water from ______ streams.

Hikers and campers often become infected by drinking water from ______ streams.

admin2011-02-11  26
问题 Hikers and campers often become infected by drinking water from ______ streams.
选项 A、configured
B、insulted
C、contaminated
D、condemned
答案C
解析 逻辑关系题：因果。人之所以会感染是因为喝了被污染的河水，答案选[C]。其他三项均不能修饰streams。
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大学英语六级

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