0  297726  297734  297740  297744  297750  297752  297756  297762  297764  297770  297776  297780  297782  297786  297792  297794  297800  297804  297806  297810  297812  297816  297818  297820  297821  297822  297824  297825  297826  297828  297830  297834  297836  297840  297842  297846  297852  297854  297860  297864  297866  297870  297876  297882  297884  297890  297894  297896  297902  297906  297912  297920  447090 

26. Although Jane agrees with me on most points, there was one on which she was unwilling to _______.

A. give out     B. give in    C. give away       D. give off

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25. In my childhood, I was often ________ by Mother to mind my behavior.

  A. hoped      B. demanded    C. allowed    D. reminded

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24. The reading club in our school welcomes those _____ of detective stories.

A. interested    B. enthusiastic   C. fond      D. addicted

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23. However I tried to read it, this sentence just doesn't make _____. Could you explain it to me?

  A, sense         B. meaning      C. thought      D. idea

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22. I prefer a flat in the downtown area to _____ in the suburb, for I want to live near my school.   A. one          B. that          C. it        D. this

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第一节:语法和词汇知识(共 15 小题;每小题 1 分,满分 15 分)

从 A、B、C、D 四个选项中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。

21. ____ Olympic Marathon is 26 miles and 385 yards, ____ distance from Marathon to Athens.

A. The; the     B./; a     C. An; a     D. /;the

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4.(本题满分10分)

有一种舞台灯,外形是正六棱柱,在其每一个侧面(编号为①②③④⑤⑥)上安装5只颜色各异的灯,假若每只灯正常发光的概率为, 若一个侧面上至少有3只灯发光,则不需要更换这个面,否则需要更换这个面,假定更换一个面需要100元,用ξ表示更换费用.

(1)求①号面需要更换的概率;

(2)求6个面中恰好有2个面需要更换的概率;

(3)写出ξ的分布列,并求ξ的数学期望.

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3.(本题满分10分)

已知矩阵,其中,若点在矩阵的变换下得到点

(1)求实数a的值;  

(2)求矩阵的特征值及其对应的特征向量.

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