两道GWD题请大家帮忙解答一下~THX

sherry88721 · 发表于 2009-11-26 12:23:22

In the past, most children who went sledding in the winter snow in Verland used wooden sleds with runners and steering bars. Ten years ago, smooth plastic sleds became popular; they go faster than wooden sleds but are harder to steer and slow. The concern that plastic sleds are more dangerous is clearly borne out by the fact that the number of children injured while sledding was much higher last winter than it was ten years ago.
Which of the following, if true in Verland, most seriously undermines the force of the evidence cited?

A.   A few children still use traditional wooden sleds.
B.   Very few children wear any kind of protective gear, such as helmets, while sledding.
C.

lastic sleds can be used in a much wider variety of snow conditions than wooden sleds can.
D.   Most sledding injuries occur when a sled collides with a tree, a rock, or, another sled.
E.   Because the traditional wooden sled can carry more than one rider, an accident involving a wooden sled can result in several children being injured.

GWD-29-Q35
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

netbanker · 发表于 2009-11-27 04:39:33

c

A 数学题变种

两道GWD题请大家帮忙解答一下~THX

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