DESIGN: a simple random sampling survey.
设计：简单随机抽样调查。
This was just one of those simple, random ideas that popped up into my head.
这只是那些简单，就是把我的头突然出现了一个随机的想法。
Primary memory is known as random access memory(RAM) and simple named memory.
主存储器又称为随机存取存储器，简称内存。
Study Design. A simple blind, random controlled clinical trial.
研究目的：单盲，随机对照临床试验。
Study Design. A simple blind, random controlled clinical trial.
研究目的：单盲，随机对照临床试验。
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