crjj 47

（47）滑雪材料

版本1

十年前人们用WOOD SL...滑雪什么，现在人们（两处好像都是儿童）用新材料好像是塑料（记不清了）制造的SL...滑雪，现在伤亡人数比十年前多了，结论就说新的这个产品不安全。

c选项说现在都不带护具,还有个选项说受伤是因为撞树上什么的引起的，最后个选项说是什么连环伤亡

按照对资料的记忆正确选项是说新的SL...比起原来木头的那种用于更广泛的场合.

这题其他的错误选项都没改，唯独把正确选项给换了！大家注意

这个JJ放一个GWD原题供大家参考

30. GWD21-Q30:

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.    Plastic 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.