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. 計(jì)算     

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9. 若奇函數(shù)的定義域?yàn)?sub>,則=             

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①     ;  ②  ③   ④

其中是一階整點(diǎn)函數(shù)的是(     )

A.①②③④    B.①③④   C.①④  D.④

 

                      第二部分  非選擇題(共110分)

二.填空題(每小題5分,共30分)

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8. 在平面直角坐標(biāo)系中,橫坐標(biāo)、縱坐標(biāo)均為整數(shù)的點(diǎn)稱為整點(diǎn),如果函數(shù)的圖象恰好通過(guò)個(gè)整點(diǎn),則稱函數(shù)階整點(diǎn)函數(shù)。有下列函數(shù):

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A.      B.     C.      D. 

 

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加工B時(shí),停機(jī)的概率是, 則這臺(tái)機(jī)床停機(jī)的概率為(   ) 

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7. 一臺(tái)機(jī)床有的時(shí)間加工零件A,  其余時(shí)間加工零件B, 加工A時(shí),停機(jī)的概率是,

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6.已知函數(shù),且的導(dǎo)函數(shù),函數(shù)的圖象如圖所示. 則平面區(qū)域所圍成的面積是                                                                            

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

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            

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N*)的直線的斜率是                                                             

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

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5. 已知等差數(shù)列的前項(xiàng)和為,且,則過(guò)點(diǎn)

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