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Losing amphibians means losing Scientists think that the decline of amphibians could
Losing amphibians means losing Scientists think that the decline of amphibians could
admin
2008-09-21
42
问题
Losing amphibians means losing
Scientists think that the decline of amphibians could
选项
A、cause environmental change.
B、cause a decline in other kinds of animals.
C、be a warning signal for human beings.
D、be a good sign for human beings.
答案
C
解析
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本试题收录于:
职称英语理工类A级题库职称英语分类
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职称英语理工类A级
职称英语
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