企业改革难,难就难在相悖二难的彼此缠绕上:1.大中型企业集中规模的优势与船小调头快.2.国营计划安排的规定性与受制于商品市场牵引下自我发展的灵活性.3.社会化大生产的进一步发展导致全民所有(国有制)与社会化的占有.4.突破旧体制的活力与重建新结构的约束力.5.旧体制的滞后与同时给予的历史依托. Enterprises difficult to reform, the difficulty is difficult to run around each other in the opposite dilemma: 1. Large and medium-sized enterprises to concentrate on the advantages of small size and turn around faster .2. The provisions of state-owned planning and controlled by the flexibility of self-development under the traction of the commodity market 3. The further development of socialized mass production leads to ownership by the whole people (state-owned system) and socialization.4 Breakthrough in the vitality of the old system and the binding of the new structure for reconstruction.5. The lag of the old system and the history Rely on.