问题 问答题

图2-l展示了公路网络的一部分,并显示了每两点之间的行程时间(以分钟计算)。为了提供最好的客户服务,你会把一个仓库定位在哪儿如果设定最大时间限度为15分钟,那么需要多少个仓库?

答案

参考答案:

通过计算,可以确定每个城镇的最大时间限制并鉴定最佳的地点,然后找出服务时间少于15分钟的城镇。这可以借助许多软件解决网络问题。如表2-3。

结论为:如果需要一个单一的位置,将推荐城镇C,最大行程为25分钟。

如果设定最大行程为15分钟,则需再A和I修建两处设施

 ABCDEFGHIJ
A010241029292520

35

32
B1001420191915302522
C241401511515302522
D1020150262030102529
E291911260642383
F2919520601021610
G25151530410027127
H2030251023212701520
I3525112586121505
J3222142931072050
最大35302530292930303532
单一  C       
MAX  25       
双位 AI       
 A0        
 B10        
 C 11       
 D10        
 E 8       
 F 6       
 G 12       
 H 15       
 I 0       
 J 5       
MAX 1015       

阅读理解

It has always been said that women are not good drivers, because they simply don’t have very good driving ability. On the other hand, most car accidents happen to men; very few happen to women.

From this, we can see that women are much more careful while driving. Another very interesting fact is that in the past, women preferred to let their husbands be the only driver in the family rather than have a driving license. Somehow they were prevented from making this step in their life, but nowadays there are many women that want to pass their driving tests at an early age.

However, we have to admit that men are more skillful drivers than women, but this does not mean that a woman cannot become a good driver by accumulating (积累) experience. So more and more teenagers and women around the age of thirty now want to pass their driving tests. While taking their driving lessons, they also have a number of special lessons with their parents or somebody in the family that has a driving license. This is just to improve their driving abilities and help them to pass the tests more easily.

To conclude, we can say that women are not such bad drivers. They just need more experience than men in order to be able to drive well. And on the other hand, there are a number of women that show better driving skills than the men around them.

小题1:

Compared with the past, nowadays many women ________.

A.prefer to have a driving license

B.have more accidents while driving

C.are somehow prevented from driving

D.are the only driver in the family小题2:

What advantage do women have over men in driving?

A.They have more skills.

B.They are much more careful.

C.They know more traffic rules.

D.They have more driving experience.小题3:

What can we infer from the passage?

A.Teenage girls cannot take driving tests.

B.Men didn’t allow women to drive in the past.

C.With enough experience, women can become good drivers.

D.Women can easily pass their tests by taking driving lessons.小题4:

The passage mainly talks about ________.

A.women and their driving ability

B.men and their driving ability

C.why men are better drivers than women

D.why more women like to have a driving license

单项选择题