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成本管理是现代社会中任何一个国家、任何一个经济实体必不可少的一项至关重要的经济工作.随着市场经济竞争的日趋激烈,企业要在竞争中立于不败之地,只有严格控制产品的直接材料费用、
Cost management is an indispensable and essential economic job for any country or any economic entity in modern society. With the increasingly fierce competition in the market economy, companies must be invincible in the competition and only strictly controlled. The direct material cost of the product,