在匀强磁场中有一个原来静止的碳14原子核，它放射出的粒子与反冲核的径迹是两个相内

蔡元培曾撰写过这样一副挽联：“是中国自由神，三民五权，推翻历史数千年专制之局；愿吾侪后死者，齐心协力，完成先生一二件未竞之功。”他悼念的是    [ ]

A．康有为    

B．袁世凯    

C．孙中山    

D．陈独秀

B

Sometimes you’ll hear people say that you can’t love others until you love yourself. Sometimes you’ll hear people say that you can’t expect someone else to love you until you love yourself. Either way, you’ve got to love yourself first and this can be tricky. Sure we all know that we’re the apple of our parents’ eyes, and that our Grandmas think we’re great talents and our Uncle Roberts think that we will go to the Olympics. but sometimes it’s a lot harder to think such nice thoughts about ourselves. If you find that believing in yourself is a challenge. it is time you build a positive self-image and learn to love yourself.

Self-image is your own mind’s picture of yourself. This image includes the way you look, the way you act, the way you talk and the way you think. Interestingly, our self-images are often quite different from the images others hold about US. Unfortunately, most of these images are more negative than they should be. Thus changing the way you think about yourself is the key to changing your self-image and your whole world.

The best way to defeat a passive self-image is to step back and decide to stress your successes. That is, make a list if you need to, but write down all of the great things you do every day. Don’t allow doubts to occur in it.

It very well might be that you are experiencing a negative self-image because you can’t move past one flaw or weakness that you see about yourself. Well, roll up your sleeves and make a change of it as your primary task. If you think you’re silly because you aren’t good at math, find a tutor. If you think you’re weak because you can’t run a mile, get to the track and practice. If you think you’re dull because you don’t wear the latest trends, buy a few new clothes. But remember, just because you think it doesn’t mean it’s true.

The best way to get rid of a negative serf-image is to realize that your image is far from objective, and to actively convince yourself of your positive qualities. Changing the way you think and working on those you need to improve will go a long way towards promoting a positive self-image. When you can pat(拍) yourself on the back, you’ll know you’re well on your way. Good luck!

小题1:You need to build a positive self-image when you _________.

A．dare to challenge yourself

B．feel it hard to change yourself

C．are unconfident about yourself

D．have a high opinion of yourself小题2:According to the passage, our serf-images _________.

A．have positive effects

B．are probably untrue

C．are often changeable

D．have different functions小题3:How should you change your serf-image according to the passage?

A．To keep a different image of others.

B．To make your life successful.

C．To understand your own world.

D．To change the way you think.小题4:What is the passage mainly about?

A．How to prepare for your success.

B．How to face challenges in your life.

C．How to build a positive self-image.

D．How to develop your good qualities.小题5:Who are the intended readers of the passage?

A．Parents.

B．Adolescents.

C．Educators.

D．People in general.

案例分析 自主创业，曾经在大学校园中热过一阵子，也有没毕业就开了公司的，但时下似乎冷了许多。王永强是某高校的文艺尖子，毕业时曾一度受到用人单位的青睐，但他还是选择了自主创业这条路。毕业不久，他与朋友一起开了一家文化公司，可真正干起来后，却发现现实情况并不像他想得那么简单，场地、演员、宣传都需要钱。好歹搞了一次小型演出还赔了。王永强从被人羡慕的位置上一下子掉了下来，“摔得挺痛的。”他对记者说，但他不死心，能坚持还得坚持，租不起办公场地，他就把公司开在了家里，搞不了活动就写稿子、写剧本，免费给人家策划节目、活动，目的只有一个：东山再起。 1．导致王永强创业失败的原因是什么？对原因进行解释？ 2．关于大学生创业，本案例给我们带来哪些启示？

低钾型周期性瘫痪患者24小时口服补钾总量为（）

A.8g

B.10g

C.12g

D.15g

E.20g

建设投资分类估算法是对( )进行分类估算。

A．工程费用

B．预备费

C．工程建设其他费用

D．涨价预备费

E．建设期利息