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七十年代中期，马春霞难产生下杨辉，李宝成认为儿子不是亲生骨肉，将其遗弃。街道工人杨妈年轻丧夫，省吃俭用，虽然家境贫困，但对杨辉百般呵护，并培养成人。苦苦寻子三十年的马春霞，终于找到了亲生儿子。因为认子问题，生母和养母两家发生矛盾。身为院长的李宝成与外科主任杨辉矛盾重重，却不知杨辉就是自己的亲生儿子。危难时刻，身为博士后的脑外专家杨辉，成功为患有脑中风的养母做了开颅手术，后给病入膏肓的生母捐献了一颗肾，体现了对养母和生母的情与缘。最终，杨辉与自己心爱的姑娘喜结良缘。In the first four cases, the current activity lifecycle is:Total quality management mainly includes the establishment of a quality assurance system: in terms of resources, attention should be paid to the quality assurance of raw materials and purchased parts, and suppliers should be carefully selected; In terms of design, the JIT management system requires the designed products to have strong flexibility. In terms of personnel, it emphasizes the quality of people's work and the sense of responsibility for product quality. In the process of processing, attention should be paid to quality process control. Only under the effect of total quality management can we ensure good quality in every link of JIT system, make it try its best to achieve "zero defects" and realize "zero inventory".? The principle of human privacy makes pseudonyms, not real names, the same below). After simple communication, he readily accepted my interview.