Mathematics is a subject with logicality.
数学是一门逻辑性极强的学科。
Index method was relatively simple and practicable, and model method had obvious logicality and system.
指数法计算方法较简单、实用;模型法具有较强的逻辑性和系统性;
Index method was relatively simple and practicable, and model method had obvious logicality and system.
指数法计算方法较简单、实用;模型法具有较强的逻辑性和系统性;
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