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The triacylglycerol shown in text Figure 26.2a, with an oleyl group at C-2 of the glycerol unit and two ste earyl groups at C-I and C-3, yields stearic and oleic acids in a 2 I molar ratio on hydrolysis. A constitutionally isomeric structure in which the oleyl group is attached to C-1 of glycerol would yield the same hydrolysis products
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Definition Frequent micturition: voiding at frequent intervals, due to a sense of bladder fullness Normal: 3-5 times in the day time 0-1 time in the night 200-400ml each time
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5.在一密闭容器中,储有A、B、C三种理 想气体,处于平衡状态.A种气体的分子数 密度为n1,它产生的压强为p1,B种气体 的分子数密度为2n1,C种气体的分子数密 度为3n1,则混合气体的压强p为 (A)3p1(B)4p1 (C)5 pl D) pl
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1.在标准状态下,任何理想气体在1m3中 含有的分子数都等于 (A)6.02×1023 (B)8.02×1021 (C)2.69×1025 (D)2.69×1023
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FOUR COLONY MODELS (3) Model of Maryland(Catholic) founder: the second Lord Baltimore; carried out his father's will in 1632 (His father George Calvert, with a granted charter in 1623 from the King but died before long.)
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Introduction Definition of paper Paper is defined as a matted or felted sheet usually composed of plant fiber Paper has been commercially made from such fiber sources as rags(inen), bagasse (sugar cane), cotton, and straw. Modern paper is made
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The best known and most widely used active packaging technologies for foods today are those engineered to remove undesirable substances from the headspace of a package through absorption, adsorption or scavenging. To achieve this goal a physical or chemical absorbent or adsorbent is incorporated in the packaging material or added to the package by means of a sachet. In most publications
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1.假定某经济有A、B、C三厂商,A厂商年产5000,卖给B、C和消费者,其中B买200,C买2000,其余2800卖给消费者。B年产500,直接卖给消费者。C年产6000,其中3000由A购买,其余由消费者购买。 (1)假定投入在生产都用光,计算价值增加 (2)计算GDP为多少 (3)如果C有500折旧,计算国民收入
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程序(一)功能:验证逻辑运算符的结果。 参考程序: main( {inta=3,b=4,c=5; printf(\%d\\n\,a+b&&b=c)
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Yesterday, you interviewed two people for a job as Assistant manager in your office. Write two short letters, one to the person who got the job, and the other to the person who did not get it, telling them your decision. (Invent any details you need.)
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