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The experiment was controlled by the random allocation of the treatment among the patients.
该项实验是通过对于病人治疗方式的随机分配来控制变量的。
youdao
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The experiment was controlled by the random allocation of the treatment among the patients.
该项实验是通过对于病人治疗方式的随机分配来控制变量的。
youdao