乘数加速数模型的创立者是：（）A、凯恩斯 B、萨缪尔森 C、马克卢浦 D、菲利普斯

A new study says one part of the human brain may become smaller as the result of a condition known as jet lag. Jet lag results from flying long distances in an airplane. Jet lag interferes with a person's normal times for sleeping and waking. People with jet lag may feel extremely tired for several days. They also may have problems thinking clearly and remembering.

Kwangwook Cho is a researcher at the University of Bristol in Britain. He reported the findings of his jet lag study in the publication Nature Neuroscience.

The study involved twenty young women who worked for international airlines. The women had served passengers on airplanes for five years. These flight attendants flew across many countries and at least seven time zones. In the study, the flight attendants had different amounts of time to recover from jet lag. Half the women spent five days or fewer in their home areas between long flights. The other half spent more than fourteen days in their home areas.

Mister Cho took some fluid from the women's mouths to measure levels of a hormone that increases during stress. He tested them to see if they could remember where black spots appeared on a computer screen. And he took pictures of their brains using magnetic resonance imaging. This is a way to measure the size of the brain's temporal lobes（颞叶）.

It was found that the women who had less time between flights had smaller right temporal lobes. This area of the brain deals with recognizing and remembering what is seen. The same group performed worse and had slower reaction times on the visual memory test. And their saliva samples showed higher levels of stress hormones.

Mister Cho says he believes the brain needs at least ten days to recover after a long trip. He says airline workers told him their ability to remember got worse after working on planes for about four years. Other studies have shown that increased feelings of stress can cause a loss of cells in the part of the brain that controls memory.

Scientists say more tests are needed to study the effects of jet lag on the brain. They want to find out if too much jet lag could permanently affect memory.

72. According to the text, jet lag _____.

A. can cause difficulties in speaking

B. can make people feel tired for a few weeks

C. is the illness only found in people who work on the airplanes

D. can be caused by flying over several time zones in an airplane

73. It is inferred that more tests need to be done because _____.

A. the conclusion was questioned by many scientists

B. scientists fear that his research is not done properly

C. every scientific conclusion needs the support from many tests

D. the woman who were studied in the research were not healthy

74. Which of the following statements is TRUE about the research results?

A. Women who have a longer rest at home show better memory.

B. Women who fly in short time had smaller right temporal lobes.

C. Women who have longer flights failed the memory test.

D. Women who rest more than 14 days produced less hormones.

75. What is the subject discussed in the test?

A. The cause of jet lag.

B. A story of a group of flight attendance.

C. A research about the effects of jet lag on the brain.

D. The importance of having enough rest after long flights.

世界若干大城市月降水量占全年降水量百分比

各城市年降水量(毫米)分别是：(从左向右)

630.8； 566.4； 586.7； 581.7； 419.1

五大城市中各城市5月份的降水量占全年降水量百分比最高的是（）

A．北京

B．马德里

C．巴黎

D．柏林

患者女性，56岁，因“持续头痛发热、右侧下肢无力10天”入院。患者2小时前突然全身抽搐、意识丧失，5分钟后自行停止抽搐，但出现右侧肢体肌力3级。查体：GCS14分，发热最高38.5℃，可唤醒，可正确理解指令性语言但不能正确表达。左耳鼓膜破裂，有瘢痕和少许脓性分泌物。明确的布氏征。除右侧肢体活动受限外，其他肢体运动无碍，双足巴宾斯基征阴性。病史提示1个月前有左侧中耳炎。颅脑强化CT示：左侧额下回实质内占位，直径约4cm，呈环形强化，中线移位小于1cm。颅脑MRI检查示：病灶中央呈长T1₁、长T₂信号，周围呈长T信号。

为明确诊断应立即进行的检查项目包括（）

A.血常规检查

B.胸部X线片或CT片以排除其他部位病变

C.必要时取其他体液标本（如痰、尿、粪等）做细菌培养，确定感染源

D.腰椎穿刺检查脑脊液压力、取脑脊液样本进行化验和培养

E.条件允许时，立体定向穿刺活检并做体外细菌培养

F.其他检查，如降钙素原、内毒素以及肝、肾功能等检测

G.脑电图监测

请填入正确的序号。

• a．抑景
• b．隔景
• c．对景
• d．框景
• e．漏景
• f．借景

在园林围墙和穿廊的侧墙上，开辟出不同图案的漏窗，用以透视园处式相邻的风景。( )