几个城市之间的路程如下表：（单位：千米）北京沈阳北京济南北京_爱下问搜题

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问题解答题

几个城市之间的路程如下表：（单位：千米）

北京沈阳	北京济南	北京石家庄	济南青岛	石家庄郑州
714	497	283	393	412

（1）从北京到石家庄，再到郑州，一共有多少千米？
（2）济南和石家庄，哪个地方离北京近？近多少千米？
（3）你还能提出什么数学问题？请列式解答．

答案

（1）283+412=695（千米），

答：从北京到石家庄，再到郑州的总路程是695千米．

（2）497-283=214（千米），

答：济南和石家庄，石家庄离北京近，近214千米．

（3）从济南到沈阳的距离是多少？

497+714=1211（千米），

答：从济南到沈阳的距离是1211千米．

选择题

在图所示的做法中，属于增大压强的是（　　）

A．

用雪橇滑雪

B．

用细线分割肥皂

C．

在螺丝下加螺母和垫片

D．

在拖拉机上安装履带

填空题

Today I’d like to talk about how to become a (1) . Usually you have to start at the beginning. That is, you have to begin (2) of some sort on a local newspaper, a (3) , maybe on a small magazine -- work (4) . Now there aren’t that many organizations which have large numbers of foreign correspondents so you also have to (5) with that aim (6) . Another way of doing it is to work abroad, and work as (7) . That’s somebody who sells stories, and gets paid (8) , to newspapers and magazines and so on. And hoping to (9) that way, and eventually to be offered a (10) .
I don’t really know (11) are needed, but obviously a degree in modern languages or (12) would be very useful. But, a degree in itself probably wouldn’t (13) . It wouldn’t be enough to get you job. It wouldn’t (14) to make an editor decide to (15) . So it’s difficult to define the (16) . You’re going to need (17) and the ability to assimilate information (18) and then produce stories which (19) of the newspaper or radio or television station you (20) .