粉尘的比电阻通常以（）表示，比电阻为（）时最有利于电除尘器的捕集。

已知某高速缓存cache采用组相联映像方式，即组间直接映像，组内全相联映像。假设主存容量为4096块，每块256B，高速缓存包含32块，分8组，每组4块。高速缓存的地址变换表应包含 (72) 个存储单元；每个存储单元应能存放 (73) 位二进制数；每次参与相联比较的是 (74) 个存储单元。

A．8
B．16
C．32
D．48

为什么要发展轻骨料混凝土

阅读理解。

    Martin had just finished high school. He would go to college at the far end of the city. He didn’t want to live there, and he didn’t want to take the bus either. So his father agreed to buy him a car.

    His father spent all his summer teaching him how to drive, from the ABC to the XYZ. Thinking of the

great feeling of driving a new car, Martin learned very quickly, and received his driver’s license(驾照) just before his eighteenth birthday.

    The second day, all the family, and their dog, went to a car shop. Martin spent almost all the morning

going from one car to another. Finally he saw a red Blue Bird. He had a testing drive on the open ground, and called out, “This is what I want, Dad!” When everything was done, they were ready to leave.

Martin climbed into the front seat. He said excitedly, “It’s my first day driving alone. Dad, Mom, and Poo! Enjoy it!”

    His dad immediately took the back seat, right behind the new driver. Martin wondered why his father

chose that seat, for his father always enjoyed looking in front.

So he said, smiling, “I’m sure you’re back there to have a change after all those weeks of sitting in the front seat teaching me how to drive.”

   “No,” Dad replied, “Do you remember what you did to me all those years when I took you to and

from school? I am sitting here to hit and kick the back of your seat all the way!”

1.Which of the following is NOT the reason why Martin’s father agreed to buy him a car?

A.Martin would go to college and it was far from home.

B.Martin preferred living at home to living at college.

C.Martin didn’t want to take the public transport.

D.Martin was able to learn how to drive very quickly.

2.In which order(顺序) did Martin do the following things?

a. He finished his high school.                      b. He tested driving the new car.

c. He got his driver’s license.                       d. He decided to buy the Blue Bird.

e. He kicked the front seat while his father was driving.

A. e－a－c－b－d        

B. a－c－b－d－e    

C. e－c－a－b－d  

D. a－c－d－b－e

3.How would the whole family probably feel on their way back home?

A. Angry              

B. Sad            

C. Cheerful          

D. Shocked

期货市场上，如果保证金比例为10%，则当价格变动1%时，投资者的盈亏变动（）

A．1%

B．10%

C．11%

D．不确定

读下图，回答问题。

（1）写出下列代号所表示的地理事物名称：

A________岛、C________半岛、D________岛、E________岛。

（2）A岛的气候类型属于________，这里经常受________气压带控制，终年高温多雨。农作物________播种，________收获。

（3）近年来，因厄尔尼诺现象影响，A岛出现持续干旱，发生森林火灾，1997年7、8月，南半球________风越过A岛，随后受________力的影响，偏转成________风，使该岛大火的烟雾严重污染了B、C两地。

（4）B地是________（国家），有________海峡沿岸最大的港口，其支柱产业有石油化工、造船、________、________和________。

（5）2004年F地强烈地震发生在________板块和________板块的交界处，可引发________。此灾害造成重大人员伤亡和财产损失的主要原因是________________________________________________________________________。

（6）印尼居民集中于________岛，原因是________________________。