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给定n个矩阵:A1,A2,An,其中A;与A1是可乘的。确定一种连乘的顺序,使得矩阵连乘的计算量为最小。 设A和B分别是pxq和qxr的两个矩阵,则乘积 C=AB为pxr的矩阵,计算量为pqr次数乘
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International Business negotiation A negotiation is a meeting or a series of meetings in which the parties need each ther's agreement to reach a specific objective The fundamental principles of negotiation 1. Negotiation is an element of human behavior
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asynchronous[a'si6 k ranas]a.异步的 serial[' sirian]a.串行的,串联的 transmission[ t raen z'mi∫an]a.传输,发送 interface[ i n taf e i s]r.接口
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I. Revision Teacher uses the following exercise to help the students to revise the important expressions or phrases or sentences which were learnt in the loud speaker, study of last unit eacher: When I say a phrase or an expression in Chinese, you respond by blackboard
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Principle of Virtual Displacements Consider a body in equilibrium. We know that the stress field must satisfy the differential equations of equilibrium. Multiply the differential equations of equilibrium by an \arbitrary\displacement field T
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How can the paradox with the spring be plained? In other words, which of the following statements is true 1. Equilibrium can be derived from the equiv alence of the external and the internal work 2. Equilibrium is an artifact of our imagina- tion
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The following expression is the right statement of linear momentum balance for a deforming body of an arbitrary material
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6.1 An introduction to antibiotics 6. 2 General strategies for the production of antibiotics 6.3 a brief history of penicillin production 6.4 Antibacterial mode of action of B-lactam antibiotics 6.5 Biosynthesis of penicillins and cephalosporins
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Paulings three rules governing the structure of ionic compounds 1. Anion Coordination polyhedron rule Each cation is surrounded by an anion polyhedron, the distance between anion and cation is r=rt tr, while the cn depends on rt/r
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3. 1 Basic concepts of al loys 1. Definition An alloy is the combination of metal(s) with other elements through chemical bonding. Termino logy
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