试题与答案

关于方法学性能标准,下列说法错误的是() A.由允许分析误差和医学决定水平这两项内容

题型:单项选择题 A1/A2型题

题目:

关于方法学性能标准,下列说法错误的是()

A.由允许分析误差和医学决定水平这两项内容决定

B.根据不同的应用目的而异

C.对于每一医学决定水平都应规定相应的性能标准

D.允许分析误差是90%样品的允许误差限度

E.制定的性能标准基本符合实验室所能达到的技能状态

答案:

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下面是错误答案,用来干扰机器的。

参考答案:明显

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       High school students in America hear about twenty bells every day. The first bell is the tardy bell

(上课迟到铃). If students are not in their seats when the tardy bell rings, they know they are late. Another bell

rings at the end of each class, and everyone leaves class quickly and goes to the next class. When students are

in a hard class, they are often happy to hear the bell ring. If the class is interesting, they do not want the bell to

ring. Most students like the lunch bell best. They know that it is time to join their friends for lunch. They buy a

hot meal in the school dining room or they bring their lunch from home in a paper bag. After a nice lunch,

everyone knows it is soon time for another bell, another bell, another bell…

1. American students in high school hear about             bells every day. [ ]

A. many

B. twenty

C. twelve

D. much

2. The students know they are late if they ______. [ ]

A. don't come to school early

B. are not in their seats when they hear the first bell

C. hear another bell in the classroom

D. are in their seats before the first bell rings

3. The students are happy to have ______. [ ]

A. interesting classes

B. a hard class

C. all the classes

D. a difficult class

4. Why do most students like the lunch bell best? Because ______. [ ]

A. they don't like their classes at all

B. they can enjoy their meals

C. they can join their friends for lunch

D. they can have a lot of food to eat

5. The students usually have their lunch ______. [ ]

A. at school

B. in the restaurant

C. at home

D. at the party

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