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本质:能量转换及守恒定律在热过程中的应用 18世纪初,工业革命,热效率只有1% 1842年,JR. Mayer阐述热一律,但没有 引起重视 1840-1849年, Joule用多种实验的一致性 证明热一律,于1950年发表并得到公认 1909年,C. Caratheodory最后完善热一律

MERS Model-based programming of Cooperating explorers Brian c. williams CSAIL Dept. Aeronautics and astronautics Massachusetts Institute of Technology

单项选择及判断题 1、以下哪项不是常见的账务处理程序?() A、原始凭证账务处理程序 B、汇总记账凭证账务处理程序 C、科目汇总表账务处理程序 D、日记总账账务处理程序

1、在借贷记账法中,账户的哪一方记增加,哪一方记减少,是由()决定的。 A、记账规则B、业务性质 C、账户性质D、账户结构

1. In the following choice, which is not the principle of accounting sytems? A. Cost-effective balance C. Internal control B. Effective reporting D. Conservation

1. The ownership structure of a business includes the following forms: A. Individual, group, corporate. B. Sole proprietorship, partnership, or corporation D. Debtors, creditors, and ownesancia C. Service, manufacturing, and financial. 2. Which of the following is NOT true concerning a sole proprietorship? A. A sole proprietorship is a company

1. David Company has the following information at the year-end for the preparation of adjusting entries: a. Of the $10000 balance in unearned revenue, $7000 has been earned. b. The annual building depreciation is $20000 C. Services provided to customers at the last day of the year unbilled totally 35000. d. Rent of 3000 for the Dec. is unpaid and unrecorded

在这一章中,我们将研究从线性赋范空间X到另一个线性赋 范空间F中的映照,亦称算子.如果Y是数域,则称这种算子为泛 函.算子和泛函我们并不陌生.例如微分算子D=云就是从连续 可微函数空间C[an6]到Ca,b]E的算子,而黎曼积分(t)dt 就是连续函数空间Ca,b]上的泛函.如果说函数是数和数之间 的对应,那末算子可说是函数和函数之间的对应,不过这是更高 级的对应而巳

经典力学在伽利略变换下形式不变(具有伽利略 协变性),一般仅适用于v<