Which of the following have been correctly classified into group s and group t?
下面哪项关于组s和组t的归类是正确的？
Randomly, rats were grouped into control group (c), simple stress group (m), intervention group (t).
动物按体重随机分组，分为对照组(C)，单纯应激组(M)，干预组(T)。
Tested group (t) : 36 chronic periodontitis patients, 57 teeth, 342 positive sites.
选定实验组(T)：36例慢性牙周炎患者，57颗牙位，共342个位点。
Tested group (t) : 36 chronic periodontitis patients, 57 teeth, 342 positive sites.
选定实验组(T)：36例慢性牙周炎患者，57颗牙位，共342个位点。
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