引起计算机运行速度缓慢的主要原因有（）等。 A.计算机感染病毒 B.计算机硬件配置较

某房地产开发企业以出让的途径获得某块土地的使用权，准备用其建造一所公立学校，但该土地上还有一建筑面积为1000平方米的商业用房需要拆迁，该商业用房的目前市价为5000元每平方米。

拆迁补偿采取产权调换的方式，偿还房屋的目前市场价为6000元每平米，建筑面积为900平米，则双方的结算差价为（）元。

A．100000

B．600000

C．400000

D．500000

Books are our greatest friends. They 1 us stories of every country in the world. They give us all kinds of  2 .

Life is short. One can not know and see 3 in the world. 4- the help of books, one is able to know what happened thousands of years ago and 5 is happening in every part of the world now. Books give us not only knowledge   6  pleasure. Reading good booksis the best way of_7    our free time. And many beautiful stories for children are 8and full of wisdom(智慧).

All the great men 9 books. Knowledge from books helps them to succeed, because books are the source(源泉)of knowledge and knowledge is the source of  10 .

小题1:A. say        B. talk        C. Tell

小题2:A. knowledge  B. food        C. exercise

小题3:A. nothing    B. everything  C. something

小题4:A. With       B. Under       C. At

小题5:A. how        B. when        C. what

小题6:A. and        B. but also    C. as well as

小题7:A. spending   B. taking      C. costing

小题8:A. interest   B. interested  C. interesting

小题9:A. love       B. hate        C. dislike

小题10:A. friendship B. success     C. Failure

预防小儿缺铁性贫血应强调

A．及早添加淀粉类辅食
B．混合喂养
C．母乳喂养
D．口服硫酸亚铁预防
E．及时添加豆类、瘦肉、含丰富维生素C食物

Sccug云是否可以取10？

下列哪一种拓扑结构共享传输介质？（）

A.星型

B.环型

C.树型

D.总线型