氢气发生器(利用水电离原理产生氢气)

A famous teacher was speaking to the students at our school. He began his lesson by holding up a ￥100 bill. Then he said to the three hundred students， “Who would like this ￥100 bill？” The students began to put up their hands at once.

Then he said， “I am going to give this ￥100 to one of you， but first， let me do this.” He then made the bill into a ball. Then he said， “Who wants it now？” The hands went back into the air.

“Well，” he said， “What if I do this？” and he dropped it on the floor and stepped on it. He picked up the dirty， crumpled bill and said， “Who still wants it？” Hands went back into the air.

“My friends，” he said， “you have learned a valua-ble lesson today. No matter  what I did to the money， you still wanted it because it did not go down in value （价值）。 It was still worth ￥ l00！”

Many times in our lives， we are dropped， crum-pled， and stepped on by the chances we take and the things that happen to us. We feel as if we are worth nothing. But remember， no matter what has happened to you， you will never lose your value： you are always valuable to those people who love you. Your value doesn‘t come from what you do or whom you know， but WHO YOU ARE.

You are special and valuable. Don‘t ever forget it！

小题1:Even though it was dirty， the money _______.

A．still went up in value

B．was worth nothing

C．didn‘t go down in value

D．was still ours小题2:We are always valuable to the people _______.

A．who pay us

B．who call us

C．who hate us

D．who love us小题3:The sentence “Hands went back into the air” means “_______”。

A．the students put up their hands again

B．the students put down their hands

C．the students put their hands behind their backs again

D．the students put their hands in front of them小题4: Why did the famous teacher use a ￥100 bill at his lesson？

A．Because he wanted to make the bill into a ball.

B．Because he used to drop a bill on the floor and stepped on it.

C．Because he was going to give the bill to one of his students.

D．Because he wanted to make the students know what value was.

阅读短文，根据短文内容，从文后所给的选项中选出能填入空白处的最佳选项，选项中有两项为多余选项。

A  Famous University Town

When we say that Cambridge is a university town we do not mean that it is a town with a university in it.

  小题1:    The university is not just one part of the town; it is all over the town. The heart of Cambridge has its shops, restaurants, market places and so on, but most of it is university, colleges, libraries, clubs and other places for university staff and students. The town was there first. Cambridge became a center of learning in the thirteenth century. Many students were too poor to afford lodgings（公寓）  小题2:    This was the beginning of the present day college system.

Today there are nearly thirty colleges.    小题3:   Many of them live in lodgings at first and move into college for their final year. But every student is a member of his college from the beginning. He must eat a number of meals in the college hall each week.

   小题4:  so nearly all of them use bicycles. Don’t try to drive through Cambridge during the five minutes between lectures, as you will find crowds of people on bicycles hurrying in all directions. If you are in Cambridge at five minutes to the hour any morning of the term, you’ll know that you are in a university town.     小题5:   .

A．Colleges were opened so that students could live cheaply.

B．Students are not allowed to keep cars in Cambridge

C．Many students were short of money for their education, so college towns were set up then.

D．A university town is one where there is no clear separation between the university buildings and the rest of the city.E. Stop in some safe place, and wait.

F. The size of Cambridge University is not so big as the town.

G. Very few students can now live in college for the whole of their course; the numbers are too great.

心律失常的治疗组合中，下列哪项是错误的：（）

A.Ⅲ度房室传导阻滞伴短阵室性心动过速--心内膜心室起搏

B.预激伴房颤--西地兰静脉注射

C.频发多源室性早搏成对出现或RonT--利多卡因静脉注射

D.伴有严重血流动力学障碍的室速--同步直流电复律

E.窦性心动过缓伴室性早搏--阿托品

数据的存储结构是指

A．存储在外存中的数据

B．数据所占的存储空间量

C．数据在计算机中的顺序存储方式

D．数据的逻辑结构在计算机中的表示

染整助剂应用的基础要求有哪些？