正确答案: C
系统误差
题目:
某实验室2014年4月质控图中,两个水平质控品(批号12354,12355)PT设定的中心线11.5s和37.8s,对应的标准差0.5s和1s。某一天两个水平质控品质控结果分别为12.2s和38.9s,第二天该两个水平质控品质控结果分别为12.3s和39.0s。
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学习资料的答案和解析:
[多选题]The blood is examined in order to answer following principal questions
Is themarrow producing sufficient numbers of mature cells in the hematopoietic lineages
Is the development of each hematopoietic lineages qualitatively normal
[单选题]在接触抗原后,T和B淋巴细胞增殖的主要场所是
脾和淋巴结