0  435369  435377  435383  435387  435393  435395  435399  435405  435407  435413  435419  435423  435425  435429  435435  435437  435443  435447  435449  435453  435455  435459  435461  435463  435464  435465  435467  435468  435469  435471  435473  435477  435479  435483  435485  435489  435495  435497  435503  435507  435509  435513  435519  435525  435527  435533  435537  435539  435545  435549  435555  435563  447090 

3.  What did she think of the play?

  She said she _______

A.    had never seen a better one   B. had never seen so better one

C.  has never seen a so good one  D. has never seen such a good one

試題詳情

2.  The final examination is coming up soon, it is time for us to ______  our studies.

  A. get down to  B. get out  C. get back for  D. get over

試題詳情

第一節(jié):單項填空(共20小題;每小題0.5分,滿分10分)

從A、B、C、D四個選項中,選出可以填入空白處的最佳選項,并在答題紙上將該選項標號涂黑。

1.    Iraq has _____ too many wars, making people _______ a lot.

A. got through ,  pay       B. looked through ,  face

C. gone through  suffer      D. passed through  destroy

試題詳情

15.設復數(shù)滿足,且在復平面上對應的點在第二、四象限的角平分線上,,求的值.

解:設

.  

在復平面上對應的點在第二、四象限的角平分線上,

它的實部與虛部互為相反數(shù),

,即

代入,得,

時,

,,即

解得;

時,

,同理可解得

試題詳情

14.設為共軛復數(shù),且,求

解:設,則

由條件得

,

由復數(shù)相等的充要條件,得

解得

試題詳情

13.證明:在復數(shù)范圍內(nèi),方程(為虛數(shù)單位)無解.

證明:原方程化簡為

,代入上述方程得

代入,得

方程無實數(shù)解,原方程在復數(shù)范圍內(nèi)無解.

試題詳情

12.已知復數(shù)滿足,且是純虛數(shù),則復數(shù)的值為  

答案:0或

試題詳情

11.設,若對應的點在直線上,則的值是  

答案:

試題詳情

10.已知復數(shù),,則的最大值與最小值之和為  

答案:

試題詳情

9.已知,則復數(shù),對應點的軌跡是  

答案:以為圓心,以2為半徑的圓

試題詳情


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