本研究主要采用实验法，依托中央广播电视大学南海学习中心03法学班的英语课程，依据简单随机抽样方法抽取了实验对象。
The research adopts experiment method. It takes an example of English course of Law '03, Nanhai center, Crtvu and chooses experiment objects based on SRS.
采用均匀随机数蒙特卡罗法计算多重积分是一种简单而有效的方法，其程序结构简单，易于编制和调试。
Monte Carlo method by adopting uniform random number is a simple and effective way to calculate multiple integrals, its structure is simple and easy to program and debug.
目的比较简单随机化、中心分层区组随机化和最小化法的均衡性。
Objective To compare the balance of simple randomization, stratified blocked randomization and minimization.
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