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标题: 请教GWD-1-Q15 [打印本页]
作者: chenkai 时间: 2008-3-4 01:36
标题: 请教GWD-1-Q15
In parts of South America, vitamin-A deficiency is a serious health problem, especially among children. In one region, agriculturists are attempting to improve nutrition by encouraging farmers to plant a new variety of sweet potato called SPK004 that is rich in beta-carotene, which the body converts into vitamin A. The plan has good chances of success, since sweet potato is a staple of the region’s diet and agriculture, and the varieties currently grown contain little beta-carotene.
Which of the following, if true, most strongly supports the prediction that the plan will succeed?
- The growing conditions required by the varieties of sweet potato currently cultivated in the region are conditions in which SPK004 can flourish.
- The flesh of SPK004 differs from that of the currently cultivated sweet potatoes in color and texture, so traditional foods would look somewhat different when prepared from SPK004.
- There are no other varieties of sweet potato that are significantly richer in beta-carotene than SPK004 is.
- The varieties of sweet potato currently cultivated in the region contain some important nutrients that are lacking in SPK004.
- There are other vegetables currently grown in the region that contain more beta-carotene than the currently cultivated varieties of sweet potato do.
answer : A.
why not C?
作者: poplars 时间: 2008-3-4 14:51
窃以为C与A比起来,没有联系南非这一特殊地区的情况
作者: paulstars 时间: 2008-6-9 18:24
此题我也有疑问,可能C不如A好,在于C项里有个significantly的缘故。
other varieties可能也rich in beta-carotene,只是没那么significantly而已。
作者: mao_gouhappy 时间: 2008-7-11 08:41
这么一看我觉得c也没有错,只是我当时做得时候先看到a,就选了,没有继续看下面的选项。
作者: 沙罗双树的雨 时间: 2008-8-25 19:30
C实际上是结论成立的必要条件,即结论成立的假设;假设和加强在某些情况下很相像,但是区别在于,加强的选项不必要突出其“必要性”,A和C都可以使结论成立,只是A使结论成立的概率加大了
作者: yunia 时间: 2008-10-9 09:55
A
方案可行,措施达目的的类型,一般加强或者削弱答案中都会含有措施。
作者: yunia 时间: 2008-10-9 09:57
A
方案可行,措施达目的的类型,一般加强或者削弱答案中都会含有措施。
作者: yunia 时间: 2008-10-9 09:58
A 表明了方案可行,措施达到目的类型
作者: hytulip 时间: 2009-5-14 23:30
顶
作者: anistonlucky 时间: 2009-5-15 01:16
The answer should be to strenghten yourself, instead of weakening your components.
作者: cherryhz 时间: 2010-4-27 16:26
标题: GWD1-15,NN来解释下!(如何在A、C间选择)
这题还是不是很懂哦。。。可否再解释具体一点怎样在A和C中选择?
用取非的办法试了一下,还是没有办法把C排除。。。
There are other varieties of sp that are significantly richer in b-c than S is.
也可以起到削弱。。。
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