Question

　　Do you know how fast winds travel? The speed at which they usually or generally travel is called average speed． In order to find out how fast winds travel, you have to select a station or a fixed place． There are 9 different kinds of winds, from the weakest to the strongest;each is given a designation or an official name in the second table．　　　　　　　　

1．Through 1987 what was the ratio（比例）of the highest to the average wind speed for BM?

A．5 : 1 B． 6 : 1 C． 7 : 1 D． 8 : 1

2．For the three places whose average wind speeds through 1996 were the three highest, about what was the average of those wind speeds in miles per hour?

A．157 B． 151 C． 60　　D． 20

3．For how many of the places shown did the highest wind speed change from 1987 to 1996?

A．One B． Two C． Three D． Six

4．For which of the places shown was the value of the difference between the average wind speed through 1987 and the average wind speed through 1996 the greatest?

A． BM B． CI　　 C． MN　　D． OI

5．The information infers that, between December 31, 1987 and December 31, 1996, which of the following was true?

I．There was a hurricane wind recorded in OI．

II．The average wind speed in MA was 6．8 miles per hour．

III．The wind speed in CI was never as high as 60 miles per hour．

A．I only　　B． II only　　C． I and III only　　D． II and III only

Answer 1

答案：A;D;B;C;A
解析：

此题表格式样特殊，而且所用字母代号极易混淆，稍不留心，便会误选。

提示：

话题：图表阅读与对照技巧。重点：细节捕捉、干扰排除、准确匹配。