求助 GWD21-Q30， GWD-18-Q38

livia2004

 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?

 

1. A few children still use traditional wooden sleds.
2. Very few children wear any kind of protective gear, such as helmets, while sledding.
3. Plastic sleds can be used in a much wider variety of snow conditions than wooden sleds can.
4. Most sledding injuries occur when a sled collides with a tree, a rock, or, another sled.
5. Because the traditional wooden sled can carry more than one rider, an accident involving a wooden sled can result in several children being injured.

答案是c，现在还不明白！！！

A survey of entrepreneurs who started companies last year shows that while virtually all did substantial preparatory research and planning, only half used that work to produce a formal business plan.  Since, on average, the entrepreneurs without formal plans secured the capital they needed in half the time of those with plans, these survey results indicate that, in general, formal plans did not help the entrepreneurs who produced them to secure the capital they needed.

 

Which of the following, if true, most seriously weakens the argument?

 

1. Companies started by entrepreneurs who had used formal business plans to attract investment were on the whole as profitable in their first year as were companies started by entrepreneurs who had not produced such plans.
2. In surveys of entrepreneurs who have attempted without success to raise sufficient capital, more than half of the respondents indicate that they have produced a formal business plan.
3. Among the entrepreneurs surveyed, those who did not produce formal business plans sought and received a much larger proportion of their capital from investors with whom they had a long-standing business relationship.
4. The entrepreneurs surveyed who did not produce a formal business plan spent nearly as much time doing preparatory research and planning as the entrepreneurs who produced plans.
5. The entrepreneurs who produced business plans generally reported later that the process of writing the plan had increased their confidence that their company would succeed.

答案是c，我觉得是e。我一个上过GWD小班的同学（gmat730）也说e

mathagao

30 结论：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.（由受伤人数增多推出塑料滑雪用具更危险）

如果说做某件事比另一件事更危险，我们要说这件事带来的危险的几率或者比例比那件事的高。选项C说P(plastic sleds)比W(wooden sleds)的适用范围广，比如W能在A这个地方用，而P能在A，B，C三个地方用。现在假设有1000人用W在A这个地方滑雪，有一百个人受伤；而在A,B,C这三个地方各有1000人用P滑雪，一共有200个人受伤，此时穿W受伤的比率要比穿P受伤的比率大了。因此不能根据数字的上升说明P比W更危险。

莉莉周的苍穹

38题，我也选e

等待解释

paulstars

38 的e我认为不对，因为为涉及到结论提到的secure capital

magic3140

up

leglas117

up

vivian128

up