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科目： 来源： 题型：

在下列句子中随机取一单词,以ξ表示取得单词THE GIRL PUT ON HER BEAUTIFUL RED HAT所包含字母的个数,则Eξ=____________.

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科目： 来源： 题型：单选题

When you are reading English novels, if you meet with some new words you can this dictionary. Which of the following can’t be used in this sentence?

A.
turn to
B.
refer to
C.
consult
D.
look up

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科目： 来源：2014届北京市高一上学期期中考试数学AP班 题型：填空题

A class collects ＄50 to buy flowers for a classmate who is in the hospital. Roses cost ＄3 each， and carnations cost ＄2 each. No other flowers are to be used. How many different bouquets could be purchased for exactly ＄50？_______

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科目： 来源：不详 题型：填空题

Given BC=1,

in a triangle（三角形）ABC, then the range of length of the side AB (or AC) is_____________________。

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科目： 来源：高二“希望杯”全国数学邀请赛 题型：填空题

Given BC=1,in a triangle（三角形）ABC, then the range of length of the side AB (or AC) is_____________________。

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科目： 来源： 题型：单选题

Never try to cheat in the exams, because if you do you will never your ill behavior.

A.
get away with
B.
get along with
C.
get out of
D.
get into

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科目： 来源：不详 题型：填空题

Let a and

be the length of two sides of a rectangle (矩形)，rotate(旋转)the rectangle about its
diagonal(对角线)，then the volume(体积) of the revolution(旋转休) obtained is equal to________。

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科目： 来源：高二“希望杯”全国数学邀请赛 题型：填空题

Let a and be the length of two sides of a rectangle (矩形)，rotate(旋转)the rectangle about its
diagonal(对角线)，then the volume(体积) of the revolution(旋转休) obtained is equal to________。