决定货币在未来增值程度的关键因素是（）。 A.时间 B.收益率 C.通货膨胀率 D.

阅读理解。

     One day an old man is selling(卖) a big elephant. A young man comes to the elephant and begins to

look at it slowly. The old man goes up to him and says in his ear," Don't say anything about the elephant

before I sell it.  Then I will give you twenty dollars. "  "All right,"  says the young man. After the old man

sells  the  elephant,   he gives the young man twenty  dollars  and says,  "Now, can you tell me how you

found the  elephant's  bad ears?"  "I didn't find the bad  ears,"  says the young man.  "Then why are you

looking at the elephant slowly?" asks the old man. The young man answers, "Because I have never seen

an elephant before, and I want to know what it looks like. "

l.         the elephant.

A.The young man sells

B. The old man sells

C. Two men sell

D. The old man buys  

2. The young man is looking at the elephant slowly. He wants to find out          .      

A. which foot of the elephant is bad

B. how heavy it is

C. which ear of the elephant is bad

D. what it looks like    

3. The young man              .      

A. knows the elephant has bad ears

B. wants to buy the elephant

C.looks after the elephant

D. gets some money from the old man   

4. The young man                .      

A.is not interested in elephants

B. knows what an elephant looks like

C. has seen some elephants before      

D. has never seen an elephant before 

5. Hearing what the young man said, the old man will  probably (很可能) be  _          .      

A. angry              

B. happy

C. dangerous          

D. hungry

操作型数据与分析型数据存在差异，分析型数据的特点之一是

A．面向具体应用

B．支持日常操作

C．事务驱动

D．需求事先未知

用（）夹持或松开工件时，应当旋转手柄，不应用锤击或用加力管。

A、管子台虎钳

B、管钳

C、扳手

D、管子割刀

为划分无线电频率，国际电信联盟《无线电规则》将世界划分为三个区域，位于第三区的国家有（）。

A、中国

B、印度

C、日本

D、澳大利亚

管理幅度是指一个管理者直接指挥下级的数目. 管理幅度应该适当才能进行有效的管理.