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Reading ___the lines, we can get the message _ they are worried about their son.
A.between; thatB.behind ; thatC.along; whatD.among; which

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According to a recent research, many teenagers have no dreams         to lead a comfortable life.
A.rather thanB.more than C.other than D.less than

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—May I have a word with you?
—________.I’m not busy, anyway.                        
A.By no meansB.By all meansC.By means ofD.By any means

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You will see what great benefit the computers you own can be _____ every time we use them.
A. atB.ofC.forD.on

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We have to give the users something new ________ what we’ve already offered, which is the only way to broaden the appeal of the website.
A.regardless ofB.in addition toC.in exchange forD.according to

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The box is so heavy that he can’t lift it.       , he is only a little child.
A.At allB.In allC.First of allD.After all

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(8分)如图,直线AB,CD分别与直线AC相交于点A,C,与
直线BD相交于点B,D.若∠1=∠2,∠3=75°,求∠4的度数.

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(8分)“十年树木,百年树人”,教师的素养关系到国家的未来.我市某区招聘音乐
教师采用笔试、专业技能测试、说课三种形式进行选拔,这三项的成绩满分均为100分,并
按2:3:5的比例折合纳入总分,最后,按照成绩的排序从高到低依次录取.该区要招聘2名音
乐教师,通过笔试、专业技能测试筛选出前6名选手进入说课环节,这6名选手的各项成绩
见下表:
序号
1
2
3
4
5
6
笔试成绩
66
90
86
64
65
84
专业技能测试成绩
95
92
93
80
88
92
说课成绩
85
78
86
88
94
85
(1)笔试成绩的极差是多少?
(2)写出说课成绩的中位数、众数;
(3)已知序号为1,2,3,4号选手的成绩分别为84.2分,84.6分,88.1分,80.8分,请你判断这六位选手中序号是多少的选手将被录用?为什么?

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(9分)如图1,在△ABC中,AB=AC,D是底边BC上的一点,BD>CD,将△ABC
沿AD剪开,拼成如图2的四边形ABDC′.
(1)四边形ABDC′具有什么特点?
(2)请同学们在图3中,用尺规作一个以MN,NP为邻边的四边形MNPQ,使四边形MNPQ具有上述特点(要求:写出作法,但不要求证明).

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(9分)已知:ABCD的两边AB,AD的长是关于x的方程的两个实数根.
(1)当m为何值时,四边形ABCD是菱形?求出这时菱形的边长;
(2)若AB的长为2,那么ABCD的周长是多少?

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