Stock option incentive plan has been used by many foreign companies, especially the Hi Tecs, to encourage employees.
近年来，许多国外企业尤其是高科技企业采用股票期权激励计划来激励员工。
CK18 and CK19 are cytokeratins with small molecular weights, the CK18 + TECs were different with CK19 + TECs in origin. Distributions and reactions to thyroid hormones.
CK 18和CK19均是小分子量的角蛋白，含有这些角蛋白的上皮细胞起源不同、分布不同，CK 18 + T Ec和CK 19 +TEc对甲状腺激素的反应性不同。
CK18 and CK19 are cytokeratins with small molecular weights, the CK18 + TECs were different with CK19 + TECs in origin. Distributions and reactions to thyroid hormones.
CK 18和CK19均是小分子量的角蛋白，含有这些角蛋白的上皮细胞起源不同、分布不同，CK 18 + T Ec和CK 19 +TEc对甲状腺激素的反应性不同。
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