问题 单项选择题

在检验方法学的研究中,性能的最实际的评价是下列哪项()

A.日内精密度

B.日间精密度

C.批内精密度

D.单次重复

E.灵敏度

答案

参考答案:B

解析:日间精密度是性能的最实际的评价,因为它包括了由于不同操作人员、仪器日间的变化、不同移液器的使用、以及实验室的温度或其他条件的变化而导致方法性能的改变。

阅读理解
配对阅读。请为每段叙述选择合适的选项。
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单项选择题


第一部分
说明:131—154题,每段文字中都有若干个空儿(空儿中标有题目序号),每个空儿右边都有A B C D四个词语。请根据上下文的意思选择唯一恰当的词语。

忽然有一天,宿舍楼一层走廊的顶棚被一 (131) 燕子相中,小夫妻忙里忙外,贴着顶棚的墙角 (132) 一个泥巢。碗口大小,黑黑的泥巢安静地 (133) 在墙角。开始,并没有谁去注意。秋天复冬天,燕子不喧闹了,燕巢更没有人注意了。
照例燕子引来春天。今年,当这一对燕子重新 (134) 楼房的走廊时,却显得焦躁不安。唧唧地叫着,飞 (135) 飞进。人们这才发现,原来不知 (136) 竞铲了那泥巢,白白的墙壁上,只留下一弯黑黑的泥痕。找不到旧巢的燕子,用爪子扒着那泥痕,扇动着翅膀,情绪似乎是很伤感的,大约它们是想弄清这是为什么。那激烈的叫声也许是对每个进出楼门的 (137) 的发问。但是,人们依旧上班下班,上学放学,偶尔也有人抬起头来望望这些“旧邻居”,发出一两句同情的叹息,埋怨多事的人干下的这缺德事。
肯定是这对燕子对这座楼以及多数的住户并未失望。它们立即 (138) ,另择地方,建一座新巢。这回,它们选择了顶棚的正中,恰在一盏顶灯的旁边。建巢速度之快出人意料,只三五日,一个新巢就已竣工。一抬头,看见新巢里 (139) 一双小脑袋,人们便友好地笑一下,这是对它们的歉意和祝愿。可也得立即躲过那泥巢,因为地上明明白白有一些落下的泥块、水滴,甚至鸟粪, (140) 掉落在头上、衣上,总不好吧。
有了新居,燕子的情绪好多了。低低地飞来飞去,唧唧呢喃软语。

A.只

B.伙

C.群

D.对