某网站向CA申请了数字证书,用户通过 (15) 来验证网站的真伪。在用户与网站进行安

题型:单项选择题

问题:

某网站向CA申请了数字证书,用户通过 (15) 来验证网站的真伪。在用户与网站进行安全通信时,用户可以通过 (16) 进行加密和验证,该网站通过 (17) 进行解密和签名。

16()

A.CA的签名

B.证书中的公钥

C.网站的私钥

D.用户的公钥

考点:护理正副高中级网络工程师中级网络工程师上午试题
题型:单项选择题

关于串联电路和并联电路,下列说法中正确的是    [ ]

A.两灯泡串联在电路中,闭合开关时,离电源正极最近的灯先亮  

B.教室里的电灯是并联的  

C.马路上的路灯总是同时亮,同时熄灭,它们一定是串联的  

D.通过两用电器的电流相等,它们一定是串联的

题型:单项选择题

十八大报指出,实现城乡居民人均收入2020年比2010年翻一番。这一目标的实现将给社会经济发展带来重大影响,这一影响的合理顺序是

①增加居民消费 ②优化资源配置 ③增加财政收入④拉动经济增长

A.①一②一③一④

B.②一③一④一①

C.④一③一①一②

D.①一④一③一②

题型:单项选择题

先天性马蹄内翻足的病变在

A.跟骨

B.足舟骨

C.距骨

D.楔骨

E.骰骨

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Weighed down by study? Pushed to the limit by the fast pace of life ? Frightened by the possible war ? Well, you’re not alone. Men and women in France are seeking relief using the world’s best medicine-----laughter.

In the past year, more than 15 laughter clubs have been set up across the country. People of all ages go to release their stress with an hour group laughs. “People telephoned me and said they have forgotten what it is to laugh. They want to find a place where they can escape all their problems for a while. So they come,” said 40—year—old Jocelyne Le Moan. She usually takes a class of around 60 people through a series of laughter techniques.

Her pupils range from teenagers to 70 years old, but most are middle---aged white collars seeking 60 minutes of relaxation at the end of a busy day. Le Moan takes them through the “Lion Laugh”and the “Laugh Contest”, where participants “speak”to each other in different ways. And instead of talking, they break into fits of laughter. At the end there are 15 minutes of “meditation”, when they lie on their backs and let the laughs burst out of their mouths.

“I love it. It’s an experience that has changed my life. Through it I rediscovered the child’s laugh inside me,”Said Romain Jouffroy, 24. “US President George W. Bush should give it a try. He has lost his laugh,”she joked . Like Jouffroy, many laughter club members find themselves changed into children again, and why not ? The average preschooler laughs up to 400 times a day.

The average adult only a day seven to 15.

The physical benefits of laughter are already well—recognized. Doctors say the act of laughing releases good chemicals into the blood—stream, while the quick breathing that accompanies it helps massage(按摩)the digestive organs and strengthens the heart.

“A full hour is like having your inside go jogging!One finishes out of breath, but feels revitalized(产生新活力. And on top of that , you’ve had a laugh,”said doctor Alexisd’ Estaing.And many participants in Paris also emphasize the psychological benefits. They believe that laughter is a way of making oneself feel more confident.

小题1:Which of the following is not included among the benefits of laughing?

A.It can make people rediscover their children’s laugh.

B.It can release good chemical into blood streams.

C.It can make you feel self—confident.

D.It can cure the illness of people.小题2:The writer suggested that you should_____________.

A.take the world’s best medicine.

B.talk to each other about what troubles you.

C.learn series of laughter techniques.

D.have a good laugh after a busy day.小题3:From the passage , we can conclude the following but___________.

A.Jocelyne Le Moan is a teacher of the club.

B.the members are mostly middle---aged white collars.

C.people always need some way to relax in life.

D.laugh freely and everything goes well.小题4:Which of the following is not the reason why so many people join the laughter clubs ?

A.Those members feel too much pressure on them.

B.They want to find a place to relax themselves.

C.Laughters help massage the digestive organs.

D.The members don’t know how to laugh.

题型:单项选择题

经纬仪在检验时,开始用脚螺旋将水准气泡居中,将照准部旋转180度,气泡不居中,是由于()。

A.十字丝横丝不水平

B.视准轴与横轴不垂直

C.十字丝竖丝不铅直

D.水准管轴与仪器竖轴不垂直

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