0  9685  9693  9699  9703  9709  9711  9715  9721  9723  9729  9735  9739  9741  9745  9751  9753  9759  9763  9765  9769  9771  9775  9777  9779  9780  9781  9783  9784  9785  9787  9789  9793  9795  9799  9801  9805  9811  9813  9819  9823  9825  9829  9835  9841  9843  9849  9853  9855  9861  9865  9871  9879  447090 

10. 计算     

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9. 若奇函数的定义域为,则=             

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①     ;  ②  ③   ④

其中是一阶整点函数的是(     )

A.①②③④    B.①③④   C.①④  D.④

 

                      第二部分  非选择题(共110分)

二.填空题(每小题5分,共30分)

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8. 在平面直角坐标系中,横坐标、纵坐标均为整数的点称为整点,如果函数的图象恰好通过个整点,则称函数阶整点函数。有下列函数:

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A.      B.     C.      D. 

 

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加工B时,停机的概率是, 则这台机床停机的概率为(   ) 

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7. 一台机床有的时间加工零件A,  其余时间加工零件B, 加工A时,停机的概率是,

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6.已知函数,且的导函数,函数的图象如图所示. 则平面区域所围成的面积是                                                                            

  A.2                             B.4                       C.5                        D.8

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            

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N*)的直线的斜率是                                                             

A.4                               B.3                        C.2                        D.1

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5. 已知等差数列的前项和为,且,则过点

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