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外语
Penguins do not suffer from the cold in Antarctica because their feathers secrete protective oil.
Penguins do not suffer from the cold in Antarctica because their feathers secrete protective oil.
admin
2012-07-29
63
问题
Penguins do not suffer from the cold in Antarctica because their feathers
secrete
protective oil.
选项
A、hide
B、warm
C、produce
D、absorb
答案
C
解析
分泌
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本试题收录于:
职称英语卫生类C级题库职称英语分类
0
职称英语卫生类C级
职称英语
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