贝克曼梁的杠杆比一般为( )。A．1:1 B．1:2 C．1:3 D．1:4

某磁盘盘组共有 10 个盘面，每个盘面上有 100 个磁道，每个磁道有32 个扇区，假定物理块的大小为 2 个扇区，分配以物理块为单位。若使用位图（bitmap）管理磁盘空间，则位图需要占用 （） 字节空间。若采用空白文件管理磁盘空间，且空白文件目录的每个表项占用5 个字节，则当空白文件数目大于 （） 时，空白文件目录占用的字节数大于位图占用的字节数。

则当空白文件数目大于（）时

A．400

B．360

C．320

D．160

In kindergarten your idea of a good friend was the person who let you have the red crayon(蜡笔) when all that was left was the ugly black one.

In primary school your ___1___ of a good friend was the person who went to the bathroom with you; ___2___ your hand as you walked through the scary(可怕的) halls; ___3___ their lunch with you when you left ___4___ on the bus; saved a ___5___ on the back of the bus for you; knew ___6___ you had a crush on(迷恋) and never understood why. In ___7___ school your idea of a good friend was the person who let you ___8___ their social studies homework; went to that “cool” party with you  ___9___ you wouldn’t wind up(结束) being the only fresher there; did not let you lunch ___10___.

In pre-university your idea of a good friend was the person who gave you___11___ in their new car;  comforted you when you broke up with Nick or Susan: found you a(n) ___12___ to the prom(舞会) or went to the prom with you(both without dates); helped you pick a university and assured you that you would get into that ___13___; helped you deal with your parents who were having a ___14___ time letting you go.

On the threshold(开始) of ___15___  your idea of a good friend was the person who was there ___16___ you just couldn’t deal with your parents; assured you that now you and Nick or you and Susan were ___17___ together, you could make it through anything; just silently hugged you as you ___18___ through blurry(模糊的) eyes at 18 years of memories; and reassured you that you would ___19___ it in university as well as you had these past 18 years; and most importantly ___20___ you off to university knowing you were loved.

1. A. idea       B. thought      C. mind   D. sight

2. A. placed    B. shook  C. held    D. waved

3. A. cooked   B. seized C. shared D. bought

4. A. ours       B. hers    C. his      D. yours

5. A. ticket     B. seat     C. chair   D. stand

6. A. what      B. that     C. who    D. why

7. A. primary  B. secondary   C. college       D. pre-university

8. A. do   B. see      C. check  D. copy

9. A. and B. so       C. as       D. but

10. A. together       B. far      C. lonely D. alone

11. A. seat      B. time    C. money       D. rides

12. A. car       B. excuse C. friend D. date

13. A. school  B. prom  C. club    D. university

14. A. good    B. wonderful  C. hard    D. modern

15. A. boy      B. baby   C. child   D. adulthood

16. A. where   B. when  C. how    D. why

17. A. back     B. happy C. up      D. over

18. A. looked  B. went   C. came   D. passed

19. A. have     B. get      C. make  D. take

20. A. put       B. got     C. took    D. sent

用人时为单位计算的率为（）

A.发病率

B.患病率

C.发病密度

D.累计发病率

E.死亡率

行政调解

信贷资产风险分类采取“以户为单位，逐凭证认定”的方式。对某一客户任意一笔信贷资产重新认定分类形态时，其他凭证贷款可不同时重新认定。