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关注：1
2013-05-23 12:21
求翻译：200例肾移植患者（肾移植组）按移植术后时间长短分层随机抽样，分为5组是什么意思？ 待解决
 悬赏分：1
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200例肾移植患者（肾移植组）按移植术后时间长短分层随机抽样，分为5组
问题补充： |
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2013-05-23 12:21:38
200 cases of renal transplant patients (kidney transplantation) according to the length of time after transplantation stratified random sampling, divided into five groups
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2013-05-23 12:23:18
200 kidneys transplant the random sampling that the sufferer(the kidney transplants the set) presses transplantation behind time length layering, ising divided into 5
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2013-05-23 12:24:58
200 example kidneys transplant the patient (kidney transplant group) after the transplant technique the time length lamination random sampling, divides into 5 groups
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2013-05-23 12:26:38
200 cases of renal transplant patients (renal transplant team) by transplant time stratified random sampling, is divided into 5 groups
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2013-05-23 12:28:18
200 cases of renal transplant patients (kidney transplantation) according to the length of time after transplantation stratified random sampling, divided into five groups
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