信息传输的安全应保证信息在网络传输的过程中不被泄露和不被攻击。下列哪些属于攻击方法

We can make mistakes at any age．Some mistakes we make are about money．But most mistakes are about people．One might say, "Did Jerry really care when I broke up with Helen?" "When I got that great job, did Jim really feel good about it, as a friend? Or did he envy my luck?" When we look back, doubts like these can make us feel bad．

Why do we go wrong about our friends? Sometimes what people want to say hides their real meaning．And if we don't really listen, we miss the feeling behind the words． Suppose someone tells you, "You're a lucky dog．" Is he really on your side? If he says, "You are a lucky guy", that's being friendly．But if he says "a lucky dog", there's a bit of envy in those words．Maybe he doesn't see it himself．But he puts you down a little if he brings in the "dog"．What he may be saying is that he doesn't think you deserve your luck．

"Just think of all the things you have to be thankful for" is another noise that says one thing and means another．It could mean that the speaker is trying to get you to see your problem as part of your life as a whole．But is he trying to? Wrapped up in this phrase is the thought that your problem isn't important．It's telling you to think of all the starving people in the world when you haven't got a date for Saturday night．

How can you tell the real meaning behind someone's words? One way is to take a good look at the person talking．Do his words fit the way he looks? Does what he says agree with the tone of voice, his posture, or the look in his eyes? Stop and think．The minute you spend thinking about the real meaning of what people say to you may save another mistake．

Therefore, when you hear someone saying, please try to know what he really means．Don't just listen to what he says with your ears but feel the words he uses with your head．In this way you may make fewer mistakes．

小题1:.

．In the 1st paragraph, the writer says something that happened between him and his friends ____．

A．He feels happy, thinking of how nice his friends were to him

B．He feels he may not have read his friends' true feelings correctly

C．He doesn't think it was a mistake to have broken up with his friend

D．He is sorry that his friends let him down小题2:.

This passage is mainly about __   __．

A．how to avoid mistakes about money and friends

B．what to do when you listen to others talking

C．how to avoid mistakes in understanding what people tell you

D．why you keep people friendly without trusting them小题3:.

．According to the author, the reason why we go wrong about our friends is that

A．we fail to listen carefully when they talk

B．people tend to be angry when we check what they say

C．people usually state one thing but mean another

D．we tend to doubt what our friends say小题4:.

．The underlined word "it" in the second paragraph refers to__    __．

A．being friendly

B．a bit of envy

C．a lucky dog

D．your luck

牙骨质中含有机物和水的重量比为( )

A．约40%～50%
B．约50%～55%
C．约60%～70%
D．约70%～80%
E．约80%～90%

某城市给水工程项目，该工程项目属大中型工程项目，施工之前，项目监理机构编制了施工组织设计，设计单位组织有关单位对施工图设计会审，施工单位作了技术交底，建设单位对施工单位进行了施工技术交底。 在施工过程中，监理单位及时编制了施工技术文件，并按《建设工程文件归档整理规范》 (GB/T 50328)的要求进行了归档。 问题1．市政基础设施工程施工技术文件包括哪些内容 2．逐一指出背景材料中的不妥之处，并改正。 3．市政基础设施工程施工技术文件应由谁在什么时间报当地城建档案管理机构归档

仅仅依靠回归分析尚不能对变量之间的因果关系作出最后判断，必须与经济行为的定性分析相结合。（）

转向盘最大自由转动量用什么工具如何检测？