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【单选题】
遗传漂变可以发生在 。A.
大群体
B.
小群体
C.
某些小群体
D.
大群体或小群体
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反馈参考答案：
举一反三
【单选题】第 10 题(本题:1分) 下列叙述中正确的是
A.
数据库系统可以解决数据冗余和数据独立性问题，而文件系统不能
B.
数据库系统能够管理各种类型的文件，而文件系统只能管理程序文件
C.
数据库系统可以管理庞大的数据量，而文件系统管理的数据量较少
D.
数据库系统独立性较差，而文件系统独立性较好
【简答题】Symptoms included nausea, vertigo, headaches and ________ vision.
【简答题】眩晕vertigo
【单选题】Vertigo is an electronics company. According to the BCG matrix, which of the following products of Vertigo would most likely classify as a question mark?
A.
Blue–a cell phone that is designed for music lovers and has a very low market share in a market that is growing steadily
B.
Electra–a home entertainment system that has a strong market share in a market that is likely to expand in the future
C.
Jump–an MP3 player that has a high market share in a market that is not expected to grow significantly
D.
SpinDrive–a car audio system that has a high market share in a market that has been growing constantly
E.
SoLo–a CD player that has a very low market share in a market that is shrinking rapidly
【简答题】卢梭认为国家主权属于()。
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