企业是社会经济的“细胞”，“细胞”的每个变化都会对社会经济的变化作出反应。 　　十年改革开放，浦东新区的经济发生了巨大的变化：据 1999年统计，完成国内生产总值 800亿元，是 1990年的 13倍，年均递增 20％以上，其中第二产业占国内生产总值的比重从 20. 1％上升到 44. Business is the “cell” of socio-economy, and every change of “cell” will respond to the changes of society and economy. In the ten years of reform and opening up, the economy of Pudong New Area has undergone tremendous changes: According to the statistics in 1999, the GDP of China reached 80 billion yuan, 13 times that of 1990, an average annual increase of over 20%, of which the secondary industry accounted for the domestic production The proportion of total value increased from 20.1% to 44.