韦伯工业区位理论的核心，是把工业产品的（）作为配置工业企业的理想区位。 A.产出最高

根据短文内容，回答下列问题。

     What would you do if you had a ticket for an exciting movie which you want to see very much?

Maybe you would say'' I would like to go to movies." But unluckily,  you will have to get ready for the

math exam tomorrow. What would you do this time? Go to movies or get ready for the exam? If your

answer is giving up seeing movies and working hard for the exam~ we say you have strong self-control.

Self-control is not anything you have with your birth, it needs to be cultivated in your mind.  Sometimes

you are attracted by one of the stories that is not worth reading.  You shouldn't waste your time reading

such a story, or you will feel sorry later.

     Don't go to bed late because of a nice TV movie, or you will go to school late. Neither should you

stay in bed too late on cold mornings, for it is a waste of time. Every one of us has some habits,  a few

of which might keep us from making progress in life. Then we must use our self-control to become free

of them.

     Remember it is necessary for you to cultivate strong self-control.

1. What do most people do if they get a ticket for an exciting movie which they want to see?

2.  If one has strong self-control, does he go to movies or get ready for the exam?

3.  Is self-control anything you have with your birth?

4.  What kind of stories can attract you sometimes?

5.  What's the main idea of this passage?

关于脱氧核糖核苷酸的生成过程的描述，正确的是

A．由5'-磷酸核糖从头合成

B．由脱氧腺苷生成dAMP

C．核糖核苷酸还原在核苷二磷酸水平

D．GTP生成dGTP

E．由TMP生成dTMP

安全壳隔离﹝压水堆﹞ containment isolation

分享工资理论是美国麻省工学院经济学教授马丁•魏茨曼（MartinWeitzman，在1984年提出的。魏茨曼将报酬制度分为（）和（）两种模式

胃溃疡X线所见中错误的是（）

A.龛影

B.充盈缺损

C.狭颈征

D.项圈征

E.黏膜纠集