声门裂

在Ca(OH)₂（K_sp=5.5×10^－6）、Mg(OH)₂（K_sp=1.2×10^－11）、AgCl（K_sp=1.56×10^－10）三种物质中，下列说法正确的是

A．Mg(OH)₂的溶解度最小

B．Ca(OH)₂的溶解度最小

C．AgCl的溶解度最小

D．物质K_sp越大溶解度也越大

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.

将二进制数1100100转换成十进制数是______。

A．110

B．100

C．101

D．99

选择大众媒体的原则除速度快、针对性、可及性原则外，还有（）

A.效率性

B.效益性

C.经济性

D.实用性

E.及时性

制作一个演示文稿的过程实际上就是依次制作一张张幻灯片的过程。