已知复数z满足|z|=2,z2的虚部为2,(1)求复数z及复数z对应的向量OZ与

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问题:

已知复数z满足|z|=
2
,z2的虚部为2,
(1)求复数z及复数z对应的向量
OZ
与x轴正方向在[0,2π)内所成角.
(2)设z、z2、z-z2在复平面内的对应点分别为A、B、C,求△ABC的面积.
考点:复数的概念及几何意义
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照样子,把句子补充完整,使表达更具体。

例:昆明湖静得像一面镜子。

(1)屋里热得像___________一样,人都快要窒息了。

(2)满天的星星像___________一样,闪闪发亮。

(3)听了这个消息,我急得像______________________。

(4)爸爸的手像___________一样有力。

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企业销售甲商品60 000元,增值税额10 200元,已按总价法入账。买方在10天以后,20天以内付款,按合同条款享受1%的现金折扣(假设计算折扣时不考虑增值税),实际付款69 600元。  编制销售收入入账和收到贷款时的会计分录。

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第二节完形填空(共20小题;每小题1.5分,满分30分)

阅读下面短文,从短文后各题所给的四个选项(A、B、C和D)中,选出可以填入空白处的最佳选项。

Kino, a poor fisher man, found a pearl (珍珠) which was    36    big as an egg and very beautiful. He set out for the nearest town to    37    it. He needed money very much to get    38    for his sick baby.

    The news that Kino had found the pearl spread (传播) the    39   . Every man suddenly became connected with Kino's pearl, and    40     went into the dreams, wishes and hungers (欲望)  of everyone.  Only one person  stood in the    41    and that was Kino,  who became every man's    42    .

     Before Kino reached the town, the pearl buyers somehow    43    he was coming and were    44    for him.

   Kino walked into the first shop. An old man    45    to have a look at the pearl. The old man's heart missed a beat (跳动) when he saw the pearl, but he took    46    not to show his excitement (激动). He looked at it for a moment and then said    47   a sad smile, “I'm sorry, my friend. It's too large. Nobody's going to    48    one like this. I can give you a thousand pesos (比索) for it.”

  “Go and    49    it to the other buyers, or I can ask them to come here if you    50   .” They soon came. They looked as if they didn't know   51    about the pearl. They    52    five hundred for it.

Kino    53     the pearl and left.    54    he never knew he was followed by a group of men who all had    55    with them.

36. A. so          B. too            C. very       D. as

37.   A. buy       B. sell            C. show      D. go with

38.   A. clothes       B. delicious food    C. sweets     D. medicine

39.   A. town      B. village              C. city        D. street

40.   A. they       B. he              C. it         D. which

41.   A. way       B. street         C. town      D. dream

42.   A. friend     B. enemy         C. follower     D. boss

43.   A. saw       B. realized         C. knew     D. recognized

44.   A. ready     B. worried         C. happy     D. afraid

45.   A. ordered      B. suggested      C. wanted       D. promised

46.   A. care       B. notice         C. attention     D. place

47.   A. on         B. in                  C. with       D. by

48.   A. want      B. get             C. carry      D. buy

49.   A. take       B. show          C. give       D. hand

50.   A. want      B. pleased          C. sell        D. like

51.   A. something  B. everything     C. anything     D. nothing

52.   A. gave      B. offered          C. paid       D. bought

53.   A. fetched      B. carried              C. brought      D. took

54.   A. But        B. Though         C. And       D. However

55.   A. pearls     B. money              C. guns      D. nothing

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哪条血管闭塞可引起延髓背外侧综合征()。

A.大脑前动脉

B.大脑中动脉

C.大脑后动脉

D.椎动脉或小脑下后动脉

E.后交通动脉

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集散控制系统是控制技术、显示技术、通信技术和()相结合的产物。

A.网络技术

B.传输技术

C.信号处理技术

D.计算机技术

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