简述信托投资与委托投资的区别。

Have you ever complained (抱怨) why life is so tiring? Does the sky sometimes  36 dark to you? Are your lessons sometimes not successful? Well, friends, cheer up and  37  all the time. If you see the world with your warm heart, you will find the whole world smiling to you.

On a sunny morning, you plan to have a walk to relax yourself. Just before you go out, it   38 starts to rain. Maybe you would feel very sad and start to complain about the weather. But dear friends, why  39  sit down and listen to the free concert that the nature brings you? And with the timely rain, crops(庄稼) in the fields will grow better and farmers will have a good harvest (收成).

  40   everyone wants to succeed in what he tries to do, life isn’t a bed of roses. It’s very common to meet difficulties on the way to success.  41   difficulty isn't terrible. The real terrible thing is that we are afraid of it. Difficulty is 42  a spring (弹簧). If you are   43   , it will be strong. So when you meet difficulties, don't give up. Instead, you should face them with a smile.

Attitude   44   everything. With an optimistic (乐观的) attitude, life is easy and 45 _. If you want to be happy, try to remember these five easy rules. Free your heart from hate; Free your mind from worries; Live an easy life; Give more; Expect less. The quickest way to receive happiness is to smile, the fastest way to lose it is to complain.

小题1:A. seem    B. seems  C. seemed

小题2:A. cry   B. smile   C. complain

小题3:A. suddenly    B. finally   C. hardly

小题4:A. don't   B. not   C. didn’t

小题5:A. But B. For    C. Although

小题6: A. In fact    B. From early on   C. For example

小题7: A. unlike B. likes    C. like

小题8: A. powerful   B. weak   C. confident

小题9: A. decides   B. deciding   C. to decide

小题10:A. please  B. pleased     C. pleasant

关于电场强度和电势，下列说法中正确的是（    ）

A．由公式可知E与F成正比，与q成反比

B．由公式U＝Ed可知，任意两点间的U与E成正比

C．电场强度为零处，电势不一定为零

D．一个电荷只受电场力，它一定是从电势高处移到电势低处

公元705年，古人研究天空，绘制了许多星图，古人研究星空的工具是 ________ ；15世纪，伽利略观察星空使用的工具是 __________ ；进入20世纪，科学家研究太空使用的工具是 _______________ 。

下列属于矿山工程常用定额分类方式的是（）

A.按反映的资金消耗分类

B.按建设程序分类

C.按工程难度分类

D.按定额的适用范围分类

E.按构成工程的成本和费用分类

最大炮检距在纵向（平行接收线方向）的分量称为（）。

A、纵向最大炮检距

B、最大非纵距

C、炮检距

D、纵向滚动距