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1·The Aim: To explore the rationality of RLD single pricing and put forward the Suggestions for RLD pricing.

目的：对“原研药单独定价”的合理性进行探究，并就原研药定价问题，提出自己的建议。

2·The education theory of B · a · Cyxomjnhcknn, the famous educationalist of Soviet Union, is precious wealth of the whole wo 'rld.

苏霍姆林斯基，前苏联著名的教育家，其丰富的教育思想是全人类的一笔宝贵精神财富。

3·Objective To study the diagnostic value of using impulse oscillation (IOS) to measure the respiratory resistance in restrictive lung disease (RLD).

目的初步探讨脉冲震荡法在测定限制性肺病（RLD）患者呼吸阻抗中的诊断价值。

4·Based on the measured data from the winter wheat fields in Zhengzhou of Henan Province, the vertical distribution of root length density(RLD)and root mass density(RMD)were analyzed.

根据在郑州进行的冬小麦根系田间实测资料，研究了根长密度和根质量密度在砂壤土中的垂直分布。