选项C 和D不正确的原因是与问题所问的salicin不符,录音后面虽然说到了这两项的关键 词,但说的是现代的阿司匹林(Modern-day aspirin),而不是salicin本身。 [重点难点]抓住compound, isolated和named三个关键词以及句子意义。 28. A [解析]作为排除题该题相对简单,因为正确选项A在录音中有明确提示,即阿司匹 林...
复方阿司匹林.由阿司匹林,非那西丁和咖啡因制成的一种解热阵痛药.[英aspirin,phenacetin and caffeine compound的缩写形式] APC Armored Personnel Carrier(人员装甲运输车):步兵战斗车,是一辆全天候、全地形的轻型装甲载具,具有在战场上迅速移动军火和运输部队的能力. APC Armor Piercing Capped (被帽穿甲弹):和穿甲...
The aspirin molecule is made up of a benzene ring, a carboxyl group, and an ester. It has both polar and non-polar components. Thus, the affinity of water (very polar) for this compound is not as great as the affinity of water for itself. However, the affinity of ethanol molecules (...
Aspirin-PC is a novel, safe and efficacious compound in ovarian cancerdoi:10.1016/j.ygyno.2017.03.200J.N. Bottsford-Miller aM. Haemmerle bM.J. Wagner bY.A. Lyons bR.A. Previs bJ.M. Hansen bR.L. Dood bW. Hu bL.M. Lichtenberger c...
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Aspirin is a trade name for acetylsalicylic acid, a common analgesic. Acetylsalicylic acid is anacetic acid ester derivative of salicylic acid. Is methyl formate an ester? Methyl formate, a clear, volatile liquid, isthe simplest carboxylate ester. It can be made in the lab by the acid-catalyz...
@alex94: Enteric coated aspirin is often called “safety coated” aspirin. It allows aspirin to pass through the stomach and on to the small intestine before it dissolves. It prevents some of the upset stomach and discomfort that some people experience when taking aspirin. ...
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It can also be used in the preparation of drugs, such as aspirin and acetaminophen. the structural formula of phenol shows the combination of a benzene ring and a hydroxyl group. The benzene ring is a ring structure composed of six carbon atoms, each of which is also connected to a ...