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Uinta I. Basic listening practice 1. Script M: Do you see yourself as a leader or more of a team player? W: Well, it depends on the circumstances. I usually enjoy working as part of a team and helping everyone work together. But if the leadership is weak, I'm not afraid to take over in order to achieve the goal at hand Q: What does the woman want to be?
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Ⅱ. Listening skills M: The police gave a few tickets out last week along Highway 15 w: In fact, quite a few tickets were given on that road Q: What does the woman mean? 2. M: Who do you think is the smartest student in the class? w: Mary is second to none Q: What does the woman say about Mary 3. W: What are you so happy about?
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1-1截面为16a号槽钢的简支梁,跨长1=4.2m,受集度为q=2kN/m的均布荷载作 用,梁放在=20°的斜面上。试确定梁危险截面上A点和B点处的弯曲正应力
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913如题9-13图所示,圆轴AB与套管CD用刚性突缘E焊 接成一体,并在截面A承受扭力偶矩M作用,圆轴的直径d=56m mm,许用切应力[r]=80MPa,套管的外径D=80mm,壁厚b=6 mm,许用切应力[r2]=40MPa
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Ⅱ. Listening skills W: How much money is the rent for an apartment in this neighborhood M: Your rent should be about a quarter of that Q How much should be the woman's rent be? 2. M: I paid $3, 500 for this digital camera. It was on sale at a 30$ discount w: Its a real bargain
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第七章定积分 The definite integration 习题讨论 题目: ayx-b 1,计算1= -dx. (x-b)2+a2 2,计算m=(n)dx,其中n,m为自然数。 0 3,计算J=1 --dx,其中x是x的整数部分。 sinx sinx 4,一研究1= (+,= dx,p>0的敛散性 +sinx 解答: aypx-b
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例1证明:向量组a1(≠0),a2,…,a线性 相关的充分必要条件是其中至少有一个a,1
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nature publishing group http://structbio.nature.com news and views Department of Biological Sciences. chem.276146-116200 Columbia University, New York, New York 6. Chen,.. Sharma, 5. Quiocho, F.A. Davidson. A.L. 15. Jones. P.M. George. A.M. FEMS Microbiol. Lett
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1 a) In an M&M frictionless environment, where there are no taxes and contracts are costless to make and enforce, the wealth of the shareholder is the same no matter what capital structure the firm adopts. In such an environment, neither the stock price nor shareholders' wealth would be affected
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Problem: How High? A projectile of mass m is launched straight up from the surface of the earth with initial speed vo. What is the maximum distance from the center of the earth Rmax it reaches before falling back down
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