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【单选题】
公鹿往往用鹿角作为争夺配偶的武器,按照 拉马克 的生物进化观点,现代的公鹿具有发达的鹿角原因是( )A.
用进废退和获得性遗传的结果
B.
变异朝着有利于生殖的方向发展的结果
C.
变异、自然选择的结果
D.
基因突变引起显著变异的结果
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反馈参考答案：
举一反三
【单选题】Was the bird with five-color feather really sent by the God?
A.
Yes
B.
No
C.
Not sure
【简答题】user authentication( )
【单选题】Kerberos is a form of user authentication that:（）
A.
Provides users access to network resources.
B.
Performs router commands after user authentication.
C.
Provides users with remote access only capabilities.
D.
Does not require an authentication server
【简答题】Just five one-hundredths of an inch thick and light golden in color, the Lay's potato chip seems an unlikely weapon for global control. But its maker, Frito-Lay doesn't think so. 'Potato chips are a s...
【单选题】She said she ______ the color TV set for five years.
A.
had had
B.
had bought
C.
has had
D.
has bought
【判断题】Yellow was the emperor's color in Imperial China and is held as the symbolic color of the five legendary emperors of ancient China.
A.
正确
B.
错误
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