问题 单项选择题 A1/A2型题

目前在实际工作中,关于允许总误差的制定,最正确的是()

A.根据医生经验提出建议

B.根据参考值与参考区间来设定允许总误差

C.根据生物学变异制定不精密度标准来推导允许总误差

D.根据多种因素的综合,由权威机构制定允许总误差

E.根据临床实验室数据统计处理而建立

答案

参考答案:D

解析:允许总误差是临床实验室质量规范中最重要的指标之一。关于如何制定允许总误差,有许多机构和学者都进行过深入研究。早在20世纪50年代,一些医生根据经验提出建议,但主观成分太强,差异较大。根据参考值与参考区间来设定允许总误差,有临床实用性,但参考范围与选用方法的不精密度有关。根据生物学变异制定不精密度标准来推导允许总误差对某些项目要求太高。在实际工作中常综合上述因素,由权威机构制定允许总误差,如美国临床实验室改进法案修正案中能力验证对检测项目的质量要求。

阅读理解

The following are the world-renewed attractions in London, so don’t miss them while touring there.

Shakespeare’s Globe

Shakespeare’s Globe, which officially opened in 1997, is a reconstruction of the Globe Theatre, built in 1599, and brings Shakespeare’s world to life. As a visitor to the exhibition,you’ll discover how shows were produced in the theatres during Shakespeare’s time. The guide-storytellers take you on a fascinating half-hour tour.

Price: Adult £9.00;Child(5-15) £6.50;  Student £7.50;  Under 5 FREE.

The Tower of London

The tower, nearly 100 feet high, with walls 15 feet thick, was built in the early 1080s. King Henry Ⅲ made this tower his home. King Edward V and his younger brother were murdered inside by their uncle. Queen Elizabeth I was shut up in the tower for two months by her half sister Mary who felt that her throne(王位)was being threatened(威胁). In 1603, part of the tower became a museum.

Price: Adult £16.50; Child (5-15) £9.50; Under 5 FREE; Student £13.50; Family (two adults with three children) £46.00.

Banqueting(宴会) House

Banqueting House is the remains of Whitehall Palace which was built in 1529 and was home to the English kings. It was destroyed by fire. Famous for its architecture and painting, the building is also known for being the scene of Charles I’s execution(处决)。

Price: Adult £4.50; Child £2.25; Student (with ID) and senior citizen (60+) £3.00; Under 5 FREE.

Tower Bridge Exhibition

Tower Bridge has stood over the River Thames in London since 1894 and is one of the finest, most recognizable bridges in the world. At the Tower Bridge Exhibition you can enjoy breath-taking views from the high-level walkways and learn about the history of the bridge and how it was built. You can then visit the Victorian engine rooms, home to the original steam engines that used to power the bridge.

Price: Adult£6.00; Child (5-15) £3.00; Under 5 FREE; Senior citizen(60+) £4.50; Student£4.50.

小题1:Which of the following places has the longest history?

A.Whitehall Palace.

B.The Globe Theatre.

C.The Tower of London.

D.Tower Bridge.小题2:If two parents with their 4-year-old son visit Tower Bridge, they should pay      .

A.£12

B.£15

C.£9

D.16小题3: Queen Elizabeth I was shut up in the tower for two months by Mary mainly because        .

A.Mary didn’t like her

B.she tried to steal Mary’s treasure

C.Mary feared she would become the Queen

D.she intended to murder Mary小题4:How many places used as a king’s home are mentioned in this passage?

A.One.

B.Two.

C.Three.

D.Four.

单项选择题 A1/A2型题