正常人的尿比重为A.1.015 B.1.010 C.1.015~1.025 D.>1

题型:单项选择题

问题:

正常人的尿比重为

A.1.015

B.1.010

C.1.015~1.025

D.>1.025

E.>1.030

考点:中医执业助理医师西医诊断学基础实验诊断(一)
题型:单项选择题

离心泵的轴承是支撑转子的部件,同时承受()。

A、径向载荷

B、轴向载荷

C、径向和轴向载荷

D、向心力

题型:单项选择题

Over the last 70 years,researchers have been studying happy and unhappy people and finally found out ten factors that make a difference.Our feelings of well-being at any moment are determined to a certain degree by genes.However,of all the factors,wealth and age are the top two.

Money can buy a degree of happiness.But once you can afford to feed,clothe and house yourself,each extra dollar makes less and less difference.

Researchers find that,on average,wealthier people are happier.But the link between money and happiness is complex.In the past half-century,average income has sharply increased in developed countries,yet happiness levels have remained almost the same.Once your basic needs are met,money only seems to increase happiness if you have more than your friends,neighbors and colleagues.

“Dollars buy status,and status makes people feel better,”conclude some experts,which helps explain why people who can seek status in other ways—scientists or actors,for example—may happily accept relatively poorly-paid jobs.

In a research,Professor Alex Michalos found that the people whose desires—not just for money,but for friends,family,job,health—rose furthest beyond what they already had,tended to be less happy than those who felt a smaller gap(差距).Indeed,the size of the gap predicted happiness about five times better than income alone.“The gap measures just blow away the only measures of income,”says Michalos.

Another factor that has to do with happiness is age.Old age may not be so bad.“Given all the problems of aging,how could the elderly be more satisfied?”asks Professor Laura Carstensen.

In one survey,Carstensen interviewed 184 people between the ages of 18 and 94,and asked them to fill out an emotions questionaire.She found that old people reported positive emotions just as often as young people,but negative emotions much less often.

Why are old people happier?Some scientists suggest older people may expect life to be harder and learn to live with it,or they’re more realistic about their goals,only setting ones that they know they can achieve.But Carstensen thinks that with time running out,older people have learned to focus on things that make them happy and let go of those that don’t.

“People realize not only what they have,but also that what they have cannot last forever,”she says.“A goodbye kiss to a husband or wife at the age of 85,for example,may bring far more complex emotional responses than a similar kiss to a boy or girl friend at the age of 20.”

小题1:According to the passage,the feeling of happiness______.

A.is determined partly by genes

B.increases gradually with age

C.has little to do with wealth

D.is measured by desires小题2:Some actors would like to accept poorly-paid jobs because the jobs______.

A.make them feel much better

B.provide chances to make friends

C.improve their social position

D.satisfy their professional interests小题3:Aged people are more likely to feel happy because they are more______.

A.optimistic

B.successful

C.practical

D.emotional小题4:Professor Alex Michalos found that people feel less happy if______.

A.the gap between reality and desire is bigger

B.they have a stronger desire for friendship

C.their income is below their expectation

D.the hope for good health is greater

题型:单项选择题

女,21岁,未婚,有多个性伴侣,因停经50天,外阴红肿、白带臭、尿频、尿痛4天就诊。妇科检查:外阴红肿充血, * * 内有大量脓性白带伴臭味,宫颈充血水肿,子宫如妊娠2月大小,双侧附件无殊,挤压 * * 口有脓性物流出。B超提示宫内早孕活胎。

进一步首选的检查为()

A.尿常规

B.尿培养

C.宫颈管内分泌物革兰染色及淋菌培养

D.宫颈管内分泌物支原体培养

E.血培养

题型:单项选择题

肺结核患者,应复治的是:()

A.初治失败和正规化疗已超过6个月

B.临床治愈后复发

C.不正规治疗累计超过3个月

D.化疗未满1个月

E.高龄患者

题型:单项选择题

以下说法中,正确的一条是______。

A.从域名到IP地址或者从IP地址到域名的转换由域名服务器DNS完成
B.域名的长度不能超过255个字符
C.主机的域名采取层次结构,从左至右分别为第一级域名、第二级域名,直至主机名
D.域名的实质是用一组具有助记功能的英文简写名代替的IP地址

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