某女性患者，69岁，因在外科术后发生低血压而转入ICU，经输液治疗血压有所上升，动脉导管以及漂浮导管置入后测血流动力学数据如下：BP96／62mmHg，PAWP8mmHg,CVP6mmHg,003.2Lmin,SVR1675dyn(sec·cm)，该患者出现低血压的原因是

A:低血容量状态 B:心源性休克 C:目前数据不足以判断低血压的原因 D:早期败血症的状态 E:过敏性休克

某男性患者，66岁，因口腔修复体无法使用前来就诊。临床检查：口腔内铸造金属桥不良修复体，冠固位体完全不密合，修复体有松动，基牙可探及有龋坏。口内上颌，下颌天然牙存留，牙冠牙体形态尚正常，均叩（-），松（-），咬合空间正常。口腔卫生较差，部分天然牙体探及龈下牙石。拆除口内不良修复体后，发现口内缺失，牙冠缺损，牙体龋坏明显，均叩（-），松（-）；残根，松动Ⅰ度，松动Ⅰ～Ⅱ度，根面腐质多；残根于龈上约2mm，叩（-），松（-）；口内可见部分残根区牙龈充血明显，有较多牙结石。患者身体健康，无心脏病、高血压等病史。

X线检查发现残根均较短小，根管较细小；根长度较长，且根管直径正常；上颌牙体破坏，龋坏及髓腔，根尖周影像正常，根管影清晰。结合临床检查结果，确定需要拔除的牙齿为

A: B: C: D: E: F: G:

Car Thieves Could Be Stopped Remotely

Speeding off¹ in a stolen car, the thief thinks he has got a great catch². But he is in a nasty surprise³. The car is fitted with a remote immobilizer, and a radio signal from a control center miles away will ensure that once the thief switches the engine   1  , he will not be able to start it again.

For now, such devices    2   only available for fleets of trucks⁴ and specialist vehicles used on construction sites. But remote immobilization technology could soon start to trickle down to ordinary cars⁵, and    3   be available to ordinary cars in the UK    4    two months.

The idea goes like this. A control box fitted to the car incorporates⁶    5    miniature cellphone, a microprocessor and memory, and a GPS⁷ satellite positioning receiver.    6   the car is stolen, a coded cellphone signal will tell the unit to block the vehicle’s engine management system and prevent the engine    7    restarted.

There are even plans for immobilizers    8   shut down vehicles on the moves⁸, though there are fears over the safety implications of such a system.

In the UK, an array of⁹ technical fixes¹⁰ is already making    9   harder for car thieves. “The pattern of vehicles crime has changed.” says Martyn Randall of Thatcham, a security research organization based in Berkshire¹¹ that is funded in part    10   the motor insurance industry.

He says it would only take him a few minutes to    11   a novice how to steal a car, using a bare minimum of tools¹². But only if the car is more than 10 years old.

Modern cars are a far tougher proposition¹³, as their engine management computer will not

  12   them to start unless they receive a unique ID code beamed out¹⁴ by the ignition key. In the UK, technologies like this    13   achieve a 31 per cent drop in vehicle-related crime¹⁵ since 1997.

But determined criminals are still managing to find other ways to steal cars. Often by getting hold of the owner’s keys in a burglary. In 2000, 12 per cent of vehicles stolen in the UK were taken by using the owner’s keys, which doubles the previous year’s figure.

Remote-controlled immobilization system would   14   a major new obstacle in the criminal’s way by making such thefts pointless. A group that includes Thatcham, the police, insurance companies and security technology firms have developed standards for a system that could go on the market sooner than the   15   expects.

词汇：    

immobilizer n．使车辆不能调动的装置
cellphone n．移动电话，手机
ignition / ɪɡˈnɪʃən / n．点火
trickle / "trɪkl / v．慢慢移动
immobilization / ɪˌməʊbəlaɪ"zeɪʃn / n．使车辆不能调动
burglary / "bɜ:ɡlərɪ / n．夜窃行为；盗窃

注释：

1. speed off：超速驾驶

2. catch：捕获物，猎获物

3. nasty：very unpleasant or annoying使人不愉快的；烦人的

4. fleets of trucks：卡车队。 Fleet：a group of vessels or vehicles owned or operated as a unit车队

5. trickle down to ordinary cars：慢慢地用到普通汽车上。 trickle：to move or proceed slowly or bit by bit慢慢地或一点一点地移动或前进

6. incorporate：to cause to merge or combine together into a united whole混合，合并到某一整体中

7. GPS：Global Positioning System全球定位系统

8. vehicles on the move：在行驶中的车辆

9. an array of：一群；一批

10. technical fixes：技术装置

11. Berkshire：a county of south-central England贝克郡，位于英格兰中南部

12. a bare minimum of tools：极少的工具。 bare：just sufficient；mere刚刚充足的；仅仅

13. Modern cars are a far tougher proposition：现代车远没有这么简单（偷盗现代车要困难得多 )。Proposition：a matter to be dealt with；a task任务，要处理的事务。

14. beam out：to emit or transmit发送，传送

15. drop in vehicle-related crime：涉及车辆犯罪案的下降。 drop：decrease下降

空8

A:whose B:who C:that D:when

Young Adults Who Exercise Get Higher IQ Scores

　　Young adults who are fit have a higher IQ¹ and are more    1    to go on to university, reveals a major new study² carried out at the Sahlgrenska Academy³ and SahlgrenskaUniversityHospital.
　　The results were recently published in the Proceedings of the National Academy of Sciences (PNAS)⁴．The study involved 1.2 million Swedish men doing military service who were born between 1950 and 1976. The research group analyzed the    2    of both physical and IQ tests the youngsters took right after they started serving the army.
　　The study shows a clear link    3   good physical fitness and better results for the IQ test. The strongest links are for    4    thinking and verbal comprehension. But it is only fitness that plays a     5    in the results for the IQ test⁵, and not strength. “Being fit means that you also have good heart and lung     6    and that your brain gets plenty of     7   ，” says Michael Nilsson, professor at the Sahlgrenska Academy and chief physician at the Sahlgrenska University Hospital. “This may be one of the reasons    8    we can see a clear link with fitness, but not with muscular    9   . We are also seeing that there are growth factors that are important.”
　　By analyzing data for twins, the researchers have been    10   to determine that it is primarily environmental factors and not genes that explain the link between fitness and a    11   IQ.
　　“We have also shown that those youngsters who    12     their physical fitness between the ages of 15 and 18 increase their cognitive performance,” says Maria Aberg, researcher at the Sahlgrenska Academyand physician at Aby health centre. “This being the case⁶，physical    13    is a subject that has an important place in schools, and is an absolute must⁷ if we want to do well in maths and other theoretical subjects.”
　　The researchers have also compared the results from fitness tests   14    national service⁸ with the socio-economic status of the men later in     15   . Those who were fit at 18 were more likely to go into higher education, and many secured more qualified jobs.

注释：

空8

A:what B:why C:how D:where

A Life with Birds