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【单选题】
我国特有的、栖息于淡水中的一种哺乳动物已处于灭绝边缘，它是( )
A.
大鲵(娃娃鱼)
B.
麇鹿(四不象)
C.
白暨豚(白鳍豚)
D.
扬子鳄
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】Many people feel that human beings are responsible for the disappearance of some other animal species. While we may have hastened the disappearance of some, abundant evidence suggests mankind has had ...
A.
Human beings have hastened the disappearance of some.
B.
There was mass extinction long before humanity's time on Earth.
C.
Human beings'activities have had great impact on the earth.
D.
Many species have extinct since the human race came into being.