已知过原点O的一条直线与函数y=log8x的图像交于A、B两点,分别过点A、B作

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问题:

已知过原点O的一条直线与函数y=log8x的图像交于AB两点,分别过点ABy轴的平行线与函数y=log2x的图像交于CD两点.

(1)证明: 点CD和原点O在同一条直线上;

(2)当BC平行于x轴时,求点A的坐标.

考点:导数的概念及其几何意义
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慢性间质性肾炎的病理改变是()。

A.新月体形成

B.肾间质纤维化

C.肾小球缺血性皱缩或硬化

D.肾小管萎缩

E.肾血管坏死

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(1)米勒实验装置中[1]内模拟了     ___     的成份,它与现在大气相比主要是不含________,进行的火花放电是模拟了_______      ,这主要为该实验提供______        

(2)装置中[2]的作用是   ______         ,[1]下部的冷凝管让反应产物和水蒸气冷却形成液体,又流回底部的烧瓶,这模拟了   _______   

(3)[3]内含有的有机物是      ________ 

(4)米勒提出的问题是                                

(5)米勒作出的假设是                                

(6)米勒得出的结论是                               

(7)原始大气形成氨基酸的条件是   ________      _________,以及__________     等自然条件。

(8)米勒的这个实验表明了在原始地球条件下,由  ________     物质形成_________      的过程是可能的。

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简析《哦,香雪》的风格特色。

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依据《社会救助暂行办法》规定,国家对最低生活保障家庭中有劳动能力并处于失业状态的成员,通过()等办法,给予就业救助。

A.项目补贴

B.培训补贴

C.费用减免

D.公益性岗位安置

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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 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" "And Paul — why didn’t I pick up that he was friendly just because I had a car" When we look back, doubts like these can make us feel bad. But when we look back, it’s too late.

Why are we wrong about our friends or our enemies Sometimes what people say hides their real meaning. And if we don’t really listen, we miss the feeling behind the words. Suppose someone says to you, "You’re a lucky dog." Is he really on your side If he says, "You’re a lucky guy" or "You’re a lucky gal," that’s being friendly. But if he says, "You are a lucky dog." There’s a bit of envy in those words. Maybe he doesn’t see it himself. But bringing in the dog he put you down a little. 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 thanking 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 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 have not 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 square with his tone of voice, his posture, 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 less mistakes.

In the first paragraph, the writer recalls some things that happened between him and his friends. He ().

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

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

C. thinks it was a mistake to have broken up with his girl friend, Helen

D. is sorry that his friends let him down

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