测定条件有小变动时，测定结果不受影响的效能指标为( )。
A．定量限
B．检测限
C．耐用性
D．精密度
E．准确度
参考答案：C
解析：[试题解析] 本组题考查要点是“药品质量标准分析方法的验证”。准确度一般用回收率(%)来表示；精密度一般用偏差、标准偏差(SD)或相对标准偏差(RSD)来表示；一般以信噪比为3:1或2:1时相应的浓度或注入仪器的量确定检测限；一般以信噪比为10:1时相应的浓度或注入仪器的量来确定定量限；耐用性是指在测定条件有小的变动时，测定结果不受其影响的承受程度。
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| A man was exploring some caves by the seashore．In one cave he __1__a bag of hardened clay balls．It seemed that someone had __2__some clay and baked the balls in the sun．They didn't look like __3__ things,but they interested him,__4__ he took the bag out of the cave with him． As he walked along the beach he __5__ the clay balls one at a time out into the ocean as far as he could．He thought __6__ about it until he dropped one of the balls and it cra  cked open on a rock．__7__was a beautiful,precious stone．__8__,the man started breaking open the remaining clay balls．__9__contained a similar treasure．He found thousands of dollars'worth of jewels in the 20 or so clay balls he had __10__,and then it struck him:__11__thousands of dollars in treasure,he could have had tens of thousands,with the 50 or 60 clay balls with their __12__treasures which were now in the ocean．He just __13__the chance． Sometimes it's like that with __14__．When we look at a person,we usually only see "the outside clay shell"．It isn't always beautiful or shining,so we __15__ the person；w  e see him as less important than someone more beautiful or more __16__．But we haven't taken the time to look for the __17__ inside that person．If we spend the time getting to know that person,the clay will __18__ and the brilliant jewel will shine．We are __19__ made,not only with our physical bodies,but also with our spiritual selves,which are sometimes hidden __20__ others by the "earthen shell" | |||
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