A histologic section of the intestine shows branched tubular glands in the compartment bounded by the muscularis mucosae and the muscularis externa. The glands drain into the crypts of lieberkuhn. This is a section of
A. pylorus
B. cecum
C. ileum
D. jejunum
E. duodenum
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The replicative zone of the gastric epithelium is located in the
A. base of the gastric gland, with all differentiating cells migrating toward the stomach lumen
B. neck of the gastric gland, with all differentiating cellsmoving toward the base of the gland
C. surface epithelium, with all differentiating cells moving toward the base of the gland
D. neck of the gland, toward the surface of the gland, and some moving toward the base
E. base of the sbumucosal glands, with all differentiating cells moving through the full thickness of the mucosa to the surface
某同学用Q检验法判断可疑值的取舍时，分以下四步进行，其中错误的为
A. 将测量数据按大小顺序排列，算出测量值的极差
B. 计算出可疑值与其邻近值之差
C. 计算舍弃商Q计,查表得Q表
D. Q表≥Q计，舍去可疑值
某试样中Cl含量平均值的置信区间为36.45％±0.10％(置信度为90％)，对此结果应理解为
A. 有90％的把握试样中Cl的含量为36.35％
B. 总体平均值µ落在此区间的概率为10％
C. 若再作一次测定，落在此区间的概率为90％
D. 在90％的置信度下，试样中Cl的含量在36.35％～36.55％范围内
滴定分析法的分析结果相对平均偏差在
A. 0.1﹪以下
B. 2﹪以下
C. 1﹪以上
D. 0.2﹪以下
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