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In Patton
City, days are categorized as having heavy rainfall (more than two inches),
moderate rainfall (more than one inch, but no more than two inches), light
rainfall (at least a trace, but no more than one inch), or no rainfall. In 1990, there were fewer days with light
rainfall than in 1910 and fewer with moderate rainfall, yet total rainfall for
the year was 20 percent higher in 1990 than in 1910.
If the
statements above are true, then it is also possible that in Patton
City
A.
the number of days
with heavy rainfall was lower in 1990 than in 1910
B.
the number of days with some
rainfall, but no more than two inches, was the same in 1990 as in 1910
C.
the number of days
with some rainfall, but no more than two inches, was higher in 1990 than in 1910
D.
the total number of inches of rain
that fell on days with moderate rainfall in 1990 was more than twice what it had
been in 1910
E.
the average amount of rainfall per
month was lower in 1990 than in 1910
为什么选A啊 我
想不通,如果选了A的话,就推导不出1990年比1991年多20%了
我觉得这个题目都没有正确答案
哪个牛牛帮帮忙 | 
