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已知等差数列{an}的前n项和为Sn(n∈N*),函数http://picflow.koolearn.com/upload/papers/g02/20110907/201109071544017251417.gif在x=0处连续,则数列{an}的公差为

发布时间:2021-08-04

A.http://picflow.koolearn.com/upload/papers/g02/20110907/20110907154401740889.gif

B.1

C.2

D.4

试卷相关题目

  • 1已知函数http://picflow.koolearn.com/upload/papers/g02/20120905/201209051225069897455.png连续,则常数a的值是(     )

    A.2

    B.3

    C.4

    D.5

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  • 2下列四个图像中,是函数图像的是http://picflow.koolearn.com/upload/papers/g02/20110422/201104221029233282080.gif

    A.(1)

    B.(1)、(3)、(4)  

    C.(1)、(2)、(3)   

    D.(3)、(4)

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  • 3设函数f(x)= http://picflow.koolearn.com/upload/papers/20140823/20140823150615432878.gifhttp://picflow.koolearn.com/upload/papers/20140823/20140823150615447475.gif在点x=1处连续,则a等于      

    A.-http://picflow.koolearn.com/upload/papers/20140823/20140823150615759207.gif

    B.http://picflow.koolearn.com/upload/papers/20140823/20140823150615759207.gif

    C.-http://picflow.koolearn.com/upload/papers/20140823/20140823150615993203.gif

    D.http://picflow.koolearn.com/upload/papers/20140823/20140823150615993203.gif

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  • 4若 f( x)= http://picflow.koolearn.com/upload/papers/20140823/20140823123705665404.gif在点 x=0处连续,则 f(0)等于(    )

    A.http://picflow.koolearn.com/upload/papers/20140823/20140823123705680216.gif

    B.http://picflow.koolearn.com/upload/papers/20140823/20140823123705696219.gif

    C.1

    D.2

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  • 5某人骑车沿直线匀速旅行,先前进了a千米,休息了一段时间,又沿原路返回b千米(b<a),再前进c千米,则此人离起点的距离s与时间t的关系示意图是图中

    A.http://picflow.koolearn.com/upload/papers/g02/20110510/201105101052301861174.gif

    B.http://picflow.koolearn.com/upload/papers/g02/20110510/201105101052301861179.gif

    C.http://picflow.koolearn.com/upload/papers/g02/20110510/201105101052302011188.gif

    D.http://picflow.koolearn.com/upload/papers/g02/20110510/201105101052302011172.gif

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  • 6在股票买卖过程中,经常用两种曲线来描述价格变化情况,一种是即时价格曲线y=f(x),另一种是平均价格曲线y=g(x),如f(2)=3表示股票开始买卖后2小时的即时价格为3元;g(2)=3表示2小时内的平均价格为3元,下面给出了四个图象,实线表示y=f(x),虚线表示y=g(x),其中正确的是

    A.http://picflow.koolearn.com/upload/papers/g02/20110701/201107011523368551178.gif

    B.http://picflow.koolearn.com/upload/papers/g02/20110701/201107011523368701129.gif

    C.http://picflow.koolearn.com/upload/papers/g02/20110701/201107011523368701119.gif

    D.imag</p><p>E.png

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