健康检查单位的主检人员应由（）以上或相应职称的专业人员担任。 A.医师 B.副主任医

阅读理解。

     Last week I visited my friend Pete in the new home where he lives with his wife and daughter. Pete used

to spend his holidays travelling the world, visiting the Louvre in Pairs or watching animals in Africa. Nowadays

he prefers to spend his holidays and weekends making his house look more beautiful. Like hundreds of

thousands of other British people, he has discovered the joy of DIY (Do It Yourself), which means if there

are any things that need fixing around the house, he will try to do the job himself.

     As he showed me the new kitchen he put together by himself and the newly painted walls, I asked Pete

where he got the idea from. He told me that his favourite source of ideas was a DIY programme on TV.

     This got me thinking about the popularity of DIY programmes in the UK. Nearly every channel has at least

one home or garden makeover show and there's even a DIY satellite channel.

     I guess it is not really surprising that DIY programmes are so popular. Two common sayings in Britain

—" an Englishman's home is his castle" and "there's no place like home"-show how important our houses are to

us. With the recent economic downturn, many people can't afford to buy a bigger house so they are looking

at how they can make their house better without spending a lot of money. DIY is the perfect choice.

     But be careful! I read a report that said over 230,000 people were hurt while doing home improvements in

the UK in just one year, including 41,000 who fell off steps and 5,800 who were seriously hurt by tools.

     I won't be going down to the hardware (五金) store. I'd rather watch DIY on TV with a nice cup of tea!

1. The underlined phrase "put together" means _____.

A. painted

B. cleaned

C. built

D. designed

2. People in the UK _____.

A. care little about their homes

B. take DIY as an enjoyable job

C. like watching all TV programmes

D. have enough money to spend on houses

3. From the last paragraph we can infer that the writer _____.

A. thinks DIY is a good way to relax

B. likes watching DIY programmes

C. is becoming interested in DIY

D. has no plan to do DIY himself

信息系统开发方式有多种，其中最有利于企业信息技术人员培养和系统维护的开发方式是

A．自行开发

B．委托开发

C．合作开发

D．购买软件

电子商务是基于 【19】 应用方式。

下图中甲、乙表示人体呼吸运动中的膈肌（用a 表示）所处的两种状态。据此判断甲、乙各处于呼吸的什么时期？

A．甲吸气、乙呼气      

B．甲呼气、乙吸气  

C．甲、乙都吸气        

D．甲、乙都呼气

　　①科学知识体系内部存在一种结构。这种结构可与地球分层结构模型类比，称之为科学知识的球状结构。______。

　　②地球的内部结构从外到里，由地壳、地幔和地核组成，科学知识体系结构从外到里则由知识外壳、知识幔层和知识内核组成。

　　③知识外壳由事实性的知识组成，如海王星、电磁波、中微子这类现象的发现均属事实性发现；知识幔层由定律性知识组成，如浮力定律、自由落体定律、化学元素周期定律均属定律性知识；知识内核由原理性知识组成，即能揭露相对深刻的本质，如氧化说、进化论、相对论等原理知识。事实性知识说明“是什么”，定律性知识说明“怎么样”，原理性知识说明“为什么”。

　　④人对某一知识领域的系统认识通常遵循从事实性一定律性一原理性的发展过程，即人们的探索性思维通常是从科学知识外壳部分通过幔层而向内核逼近的。例如，在天文学史上，哥白尼的日心说首先解决了“是什么”，即确认了我们这个恒星系统中，地球、火星等行星都是围绕太阳运行的；继而，开普勒的行星运动定律描述了“怎么样”，即确立了地球等行星是按照某种特定的周期、轨道和速度围绕太阳运行的；最后，牛顿的万有引力原理探索了“为什么”，说明太阳是以某种特定的力作用于行星，从而使行星按开普勒发现的三大定律运行。

　　⑤上述过程标志着科学家对科学之谜的认识的不断深化。

　　⑥科学家则根据各自的发现的深刻性而被划分为不同的级别。这样，科学界在无形中便形成了一个声誉的金字塔结构。处在塔顶尖的是那些因为有重大原理性发现而驰名世界的科学巨星，拉瓦锡为现代科学之父，维萨留斯为现代解剖学之父。处于金字塔中部的是那些因为提出重要的定律性知识而得名的科学人物，如开普勒、哈勃、孟德尔等。相比之下，聚集在金字塔下部的通常是那些有重要事实性发现的科学家。

第5段中的“过程”是指（）

A．人对知识领域的认识

B．人对宇宙的认识

C．人对科学体系的认识

D．人对“日心说”的认识