正常成人眼看6m以外物体时（　　）

(1)【◆题库问题◆】：[单选] 正常成人眼看6m以外物体时（　　）
A．折光系统需要调节，使物体在视网膜清晰成像
B．折光系统不需调节，物体即可在视网膜上清晰成像
C．折光系统不需调节时，物体在视网膜前成像
D．折光系统不需调节时，物体在视网膜后成像
E．折光系统最大调节，物体在视网膜上才能形成清晰的图像

【◆参考答案◆】：B

【◆答案解析◆】：略

(2)【◆题库问题◆】：[单选] 选择之债是 （　　）
A．债权人可选择
B．债务人可选择
C．债权可选择
D．给付可选择

【◆参考答案◆】：D

(3)【◆题库问题◆】：[单选,材料题] What can we conclude from this passage?回答下面的题目Two hundred years ago, American studentswent to American schools． Like you, theystudied arithmetic, spelling and geography． Unlike you, they also studied Greekand Latin． In fact, students spent more than half their time studying Greek andLatin．The same was true for most students in EuropE． Until the seventhcentury, all educated Europeans knew Latin．It did not matter if they lived in England or Italy or France orSpain． If they were educated, they knewLatin．During the seventh century, educated Europeans began to study Greek aswell as Latin． Greek and Latin had been the leading languages of the ancientGreeks and Romans． All educated Europeans were expected to know theselanguages．To educated Europeans, the languages of the Greeks and the Romans wereimportant． The ideas of the Greeks and Romans were also important． People knewthat many of their own ideas had come from the Greeks and the Romans． Tounderstand their own culture, they must understand its origin． They knewthat those beginnings lay in the classical worlD．Today we have so many things to study that few people have time to learnGreek and Latin． Few of you will study either language in school． Yet the ideasof the Greeks and the Romans are still important to us． These ideas still helpto shape Western culture today． To understand our own culture, we must understandthe culture of the classical worlD．A good synonym for "origin"is________
A．Greeks and Romans significantlyinfluenced European culturE．
B．The Greeks were the founders ofdemocracy．
C．The Greeks and Romans were bitterenemies．
D．People of the classical world werebarbaric and uneducateD．

【◆参考答案◆】：A

【◆答案解析◆】：这篇文章的主要观点是说无论过去大家都学希腊语和拉丁语，还是现在几乎无人学希腊语和拉丁语，罗马和希腊对欧洲文化仍然起着很重要的作用。选项A是正确的。

(4)【◆题库问题◆】：[单选] 肺泡表面活性物质减少将导致（　　）
A．肺弹性阻力减小
B．肺顺应性增大
C．肺泡表面张力降低
D．肺难于扩张
E．小肺泡内压小于大肺泡内压

【◆参考答案◆】：D

(5)【◆题库问题◆】：[单选]中国新民主主义革命的中心问题是
A．无产阶级的领导权问题
B．农民问题
C．革命对象问题
D．革命动力问题

【◆参考答案◆】：B

(6)【◆题库问题◆】：[单选] 函数y-=ƒ(x)满足ƒ(1)=2ƒ″(1)=0，且当x<1时，ƒ″(x)<0；当x>1时，ƒ″(x)>0，则有（　　）．
A．x=1是驻点
B．x=1是极值点
C．x=1是拐点
D．点(1，2)是拐点

【◆参考答案◆】：D

【◆答案解析◆】：利用拐点的定义来确定选项．需注意的是：拐点是曲线上的点，应该是(1，2)，而不是x0=1．

(7)【◆题库问题◆】：[单选] 肺换气的原动力是（　　）
A．呼吸肌的舒缩活动
B．肺内压与大气压的压力差
C．肺泡气与血液间的气体分压差
D．胸内压与肺内压之差
E．肺的舒缩活动

【◆参考答案◆】：A

【◆答案解析◆】：略

(8)【◆题库问题◆】：[单选,材料题] _________根据以下内容，回答下面的题目。Insure means to protect _51_ a loss of money．Most people can budget their money so that their income will cover expected expenses _52_ food, clothing, housing, and public services．But, there is no way to know _53_ who will suffer a crisis (危机) such as a serious illness, fire, flood, or a car accident．Such crises usually _54_ great expensE．Even if people could predict crises, it would be hard to save enough money to _55_ the expenses．Insurance is a system _56_ a company collects money from many individuals and then pays certain expenses whenever one of those insured individuals is faced with a certain crisis．An insurance policy _57_ how much the insurance costs and how much the company will pay when a policy holder is faced with a certain crisis．There are many different kinds of insurance, _58_ hospital, motor-car and firE．Insurance can be rather expensive but most people buy insurance of some kinD．Insurance is something _59_ people buy and hope they will _60_ neeD．_________
A．such as
B．for example
C．that
D．the same as

【◆参考答案◆】：A

(9)【◆题库问题◆】：[单选] 已知f(x)=x3+3，则f’(3)=(　　)。A．27 B．18 C．16 D．12
A．
B．
C．
D．

【◆参考答案◆】：A

【◆答案解析◆】：由f‘(x)一3x2，得f’(3)=3×32=27．

(10)【◆题库问题◆】：[单选] 吸入气中C02浓度达20%时，机体会出现（　　）
A．呼吸浅快
B．呼吸深快
C．呼吸抑制
D．呼吸深慢
E．肺通气量增大1倍以上

【◆参考答案◆】：C