贵州省清华实验学校09-10学年高一上学期《函数概念和性质》同步练习 人教版.doc

贵州省清华实验学校09-10学年高一上学期函数概念和性质同步练习一.选择题：本大题共12小题，每小题5分，共60分，在每小题给出的四个选项中，只有一项是符合题目要求的.1已知四组函数： 其中表示同一函数的组别是 （ ）A没有 B仅有 C仅有、 D有、2给定映射：，在映射下，的原象为 （ ）A B C D3在股票买卖过程中，经常用到两种曲线：一种是即时价格曲线（虚线部分），另一种是平均价格曲线（实线部分），（如是指开始买卖后第三小时的即时价格是元；表示三个小时内的平均价格为元）下列给出的四个图中，其中可能正确的是 （ ）Error! No bookmark name given.Error! No bookmark name given.Error! No bookmark name given.Error! No bookmark name given.Error! No bookmark name given.Error! No bookmark name given.Error! No bookmark name given.Error! No bookmark name given.Error! No bookmark name given.Error! No bookmark name given.Error! No bookmark name given.Error! No bookmark name given.Error! No bookmark name given.Error! No bookmark name given.Error! No bookmark name given.Error! No bookmark name given.Error! No bookmark name given.Error! No bookmark name given.Error! No bookmark name given.Error! No bookmark name given.Error! No bookmark name given.Error! No bookmark name given.Error! No bookmark name given.Error! No bookmark name given.Error! 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