0  437177  437185  437191  437195  437201  437203  437207  437213  437215  437221  437227  437231  437233  437237  437243  437245  437251  437255  437257  437261  437263  437267  437269  437271  437272  437273  437275  437276  437277  437279  437281  437285  437287  437291  437293  437297  437303  437305  437311  437315  437317  437321  437327  437333  437335  437341  437345  437347  437353  437357  437363  437371  447090 

25.     fresh air,people may start to feel sick.So make sure you open the windows while working.

   A.For the absence of                B.In the absence of

   C.In the honor of                    D.In the short of

試題詳情

24.-Tom is said to have been accused of mismanagement.

   -It’s not fair.I don’t think him the person       for what happened.

   A.to be blamed                                      B.to blame

   C.blamed                          D.blame

試題詳情

23.In the character-training of children,what really     much is what their parents

   say and do.

   A.matters         B.concerns       C.cares           D.minds

試題詳情

22.In face of     failure,we should keep up    good state of mind instead of being depressed. 

   A./;the         B.a(chǎn);the         C.the;a         D./;a

試題詳情

第一節(jié):從下面每個句子后面所給的A、B、C、D四個選項中選出一個最佳答案。(共15小題,每小題1分,計15分)

21.     your worries with the friend you trust,-you will feel relieved.

A.Share                           B.To share       

C.Sharing                          D.Having shared

試題詳情

20、已知函數(shù)和點,過點作曲線的兩條切線、,切點分別為、

(Ⅰ)設,試求函數(shù)的表達式;

   (Ⅱ)是否存在,使得三點共線.若存在,求出的值;若不存在,請說明理由.

(Ⅲ)在(Ⅰ)的條件下,若對任意的正整數(shù),在區(qū)間內(nèi)總存在個實數(shù),,使得不等式成立,求的最大值.

試題詳情

19、設函數(shù)

.對于正項數(shù)列,其前

  (1)求實數(shù)   (2)求數(shù)列的通項公式

  (3)若大小,并說明理由。

試題詳情

18、將函數(shù)在區(qū)間內(nèi)的全部極值點按從小到大的順序排成數(shù)列.

(Ⅰ)求數(shù)列的通項公式;

(Ⅱ)設,求證:,.

試題詳情


同步練習冊答案