船在静水中的速度为6m/s，若河水流速为4m/s不变，则河岸上的人看到船相对河岸

Once， a king showed two men a large basket in the garden. He told them to fill it with water from a well. After they ____ their work， he left them， saying， “When the sun is down， I will come and see your work.”

At last one of them said， “What’s the use of doing this foolish work? We can ___ fill the basket.” ____ man answered， “That is none of your business.” The first man said. “You may do as you like， but I am not going to work at ____ so foolishly.” He ____ his bucket(圆桶) and went away. The other man said no word， and kept on carrying ____. At last the well was almost ____.

As he poured the last bucket of water into the basket， he saw a bright thing in it. He ______. It was a beautiful gold ring. Just then the king came. ____ he saw the ring， he knew that he had found the kind of man he wanted. He told him to keep the ring for himself. “You ___ so well in this little thing，” he said， “ What now I know I can believe you with many things.”

小题1:

A．finished

B．did

C．began

D．had小题2:

A．never

B．also

C．hard

D．always小题3:

A．The other

B．Another

C．One

D．A second小题4:

A．anything

B．something

C．nothing

D．everything小题5:

A．picked up

B．put away

C．took away

D．threw away小题6:

A．water

B．basket

C．well

D．work小题7:

A．full

B．empty

C．filled

D．clean小题8:

A．put it up

B．looked it up

C．picked it up

D．gave it up小题9:

A．While

B．As soon as

C．Before

D．Since小题10:

A．have done

B．will do

C．do

D．are doing

捍卫国家 * * ，与颠覆国家 * * 和分裂国家 * * 的行为作坚决斗争。这属于公民

的哪种政治义务。

A．维护国家统一和民族团结

B．遵守宪法和法律

C．维护国家安全、荣誉和利益

D．服兵役和参加民兵组织

阅读理解

     We once had a poster competition in our fifth grade art class.

     "You could win prizes, " our teacher told us as she wrote the poster information on the blackboard.

She passed out sheets of construction paper while continuing, "The first prize is ten dollars.You just have

to make sure that the words on the blackboard appear somewhere on your poster."

     We studied the board critically.Some of us looked with one eye and held up certain colors against the

blackboard, rocking the sheets to the right or left while we conjured up our designs.Others twisted their

hair around their fingers or chewed their erasers while deep in thought.We had plans for that tendollar

grand prize, each and every one of us.I'm going to spend mine on candies, one hopeful would announce, while an other practiced looking serious, wise and rich.

     Everyone in the class made a poster.Some of us used parts of those fancy paper napkins, while others used nothing but colored construction paper.Some of us used big designs, and some of us preferred to

gather our art tidily down in one corner of our poster and let the space draw the viewer's attention to it.

Some of us would wander past the good students' desks and then return to our own projects with a

growing sense of hopelessness.It was yet another grownup trick of the sort they seemed especially fond

of, making all of us believe we had a fair chance, and then always-always-rewarding the same old winners.

     I believe I drew a sailboat, but I can't say that with any certainty.I made it.I admired it.I determined

it to be the very best of all of the posters I had seen, and then I turned it in.

     Minutes passed.

     No one came along to give me the grand prize, and then someone distracted me, and I probably never would have thought about that poster again.

     I was still sitting at my desk, thinking, What poster?when the teacher gave me an envelope with a

tendollar bill in it and everyone in the class applauded for me.

1.What was the teacher's requirement for the poster?

A. It must appear in time.

B. It must be done in class.

C. It must be done on a construction sheet.

D. It must include the words on the blackboard.

2.The underlined phrase in Paragraph 3 most probably means   ___.

A. formed an idea for                

B. made an outline for

C. made some space for                

D. chose some colors for

3. After the teacher's words, all the students in the class  ____ .

A. looked very serious

B. thought they would be rich

C. began to think about their designs

D. began to play games

4. After seeing the good students' designs, some students   ____.

A. loved their own designs more

B. thought they had a fair chance

C. put their own designs in a corner

D. thought they would not win the prize

5.We can infer from the passage that the author  ____ .

A.enjoyed grownup tricks very much

B.loved poster competitions very much

C.felt surprised to win the competition

D.became wise and rich after the competition

异步串行通讯接口有（）

A.RS232

B.RS485

C.RS422

D.RS486

如果要在字段中控制重复值的输入并对记录排序，则对数据库表可用的索引( )。

A．对数据库表只使用主索引

B．对数据库表只使用候选索引

C．对数据库表可以使用主索引或候选索引

D．对自由表可以使用主索引