糖是一类化学本质为多羟醛或多羟酮及其衍生物的有机化合物。在人体内糖的主要形式 是葡萄糖(glucose,lc)及糖原(glycogen,n)葡萄糖是糖在血液中的运输形式,在机体 糖代谢中占据主要地位;糖原是葡萄糖的多聚体包括肝糖原、肌糖原和肾糖原等,是糖在 体内的储存形式。葡萄糖与糖原都能在体内氧化提供能量

ECENOMIC S Lorenz Curve shows Income Inequality T137 Figure 19-1 100 Curve of absolute equality Deviation fror absolute equality

ECENOMIC S Gross domestic product can be measured Either as(a) a Flow of Final Products or Equivalently, as(b) a Flow of Costs 1-153

ECENOMIC S Business fluctuations have been a Persistent Feature of Capitalism

ECENOMIC S We Now Turn to Money: Its Demand and the Role of Banks in Its Supply

ECNOMICS Economic Growth Is Key to Long- Term Living Standards

ECNOMICS Openness of Different Economies, 1997

Increases Affect Aggregate Supply?OSt How Do Growth in Potential Output and Ce

According to Say's Law, Supply Creates Its Own Demand as Prices move to balance Demand with Aggregate Supply

新陈代谢:发生在活细胞中的各种分解代谢 catabolism)和合成代谢( anabolism)的总和。 新陈代谢=分解代谢+合成代谢 分解代谢:指复杂的有机物分子通过分解代谢酶系 的催化,产生简单分子、腺苷三磷酸(ATP)形式的能 量和还原力的作用