[求助]GWD1-15请指正，谢谢！

pangpangshin

GWD1-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?

 

1. The growing conditions required by the varieties of sweet potato currently cultivated in the region are conditions in which SPK004 can flourish.

2. 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.

3. There are no other varieties of sweet potato that are significantly richer in beta-carotene than SPK004 is.

4. The varieties of sweet potato currently cultivated in the region contain some important nutrients that are lacking in SPK004.

5. There are other vegetables currently grown in the region that contain more beta-carotene than the currently cultivated varieties of sweet potato do.

正确答案A

对答案无疑问

我想问下大家C是不是也起到加强作用？

我的思路是：如果SPK不是最富有bc成分的，那么就不能肯定它会最有市场啊

请指正，谢谢！

jandjshi

但文中说了the varieties currently grown contain little beta-carotene, 那就算SPK不是最富有bc成分的, 也比现有的那些好.

pangpangshin

明白啦，谢谢！

idle_lie

我有一些疑问.

我觉得文中的plan是推销SPK004, 是否能比其他varieties更有市场, 而A只是阐述了growing condition适合种植SPK004而已. 我觉得和题目要表达的意思不是很相干. 另外,题目中只是说现在种的土豆比SPK004的胡萝卜素要少,C选项进一步说了SPK004的胡萝卜素含量是最高的, 我觉得相比A而言,C好像更切中要害一些. 不知大家对我的想法怎么看?

atc

再好，种不活有啥用呀？

nick092123

这题我也很困惑,XDF的蓝色书中给的答案是C,我当时做的时候选的是A.

想了半天,最后接受C是正选,今天做CD却又发现A是答案.........

rorochen

继续讨论，我选的是c, 但答案是a,我觉得题干中说：这个plan has good chances of success是因为 1） stweet potato是当地人的主食和农业 ， 2）目前其他的种植产物含beta胡萝卜素少

我觉得A的意思是现在这个种植情况，如果种spk400比起种stweet potato繁殖起来更快

而c说 ： 其他的stweet potato都没有这个spk400含的胡萝卜素含量高， 我觉得和提干中的第二个  2）目前其他的种植产物含beta胡萝卜素少 差不多~~

请高人指点一下~~~

tamama

以下是引用rorochen在2008-7-31 14:27:00的发言：

继续讨论，我选的是c, 但答案是a,我觉得题干中说：这个plan has good chances of success是因为 1） stweet potato是当地人的主食和农业 ， 2）目前其他的种植产物含beta胡萝卜素少

我觉得A的意思是现在这个种植情况，如果种spk400比起种stweet potato繁殖起来更快

而c说 ： 其他的stweet potato都没有这个spk400含的胡萝卜素含量高， 我觉得和提干中的第二个  2）目前其他的种植产物含beta胡萝卜素少 差不多~~

请高人指点一下~~~

選項A並沒有在比較繁殖速度, 而是繁殖成功的可能性

舉個例子相親好了, 張三李四都喜歡你, 三姑六婆就覺得張三沒有MBA學位配不上你,於是就介紹MBA李四給你認識, 還推斷你們能拍拖結婚. 問支持.

A選項就是你也喜歡李四

C選項就是李四是最厲害的商學院畢業的

很明顯, 就是A選項, 反駁C就是你不喜歡李四的話還管他哪裡畢業的

下面是我的筆記, 請參考一下

GWD1-Q15:
        土豆引入計劃

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.

要引入新品種土豆SPK, 因為bc營養多. 因為土豆是主要食物而且現在種的品種bc少營養.問計劃成功的原因

Which of the following, if true, most strongly supports the prediction that the plan will succeed?

A.      The growing conditions required by the varieties of sweet potato currently cultivated in the region are conditions in which SPK004 can flourish.
        土地適合種植, 邏輯類似於GWD1-Q31

B.      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.
        跟現在的品種樣子看起來不一樣, 無關

C.      There are no other varieties of sweet potato that are significantly richer in beta-carotene than SPK004 is.
        這是最有營養的品種<-如果SPK不適合種植的話, 計劃也不能成功. 最有營養並不是計劃成功的必要條件.

D.      The varieties of sweet potato currently cultivated in the region contain some important nutrients that are lacking in SPK004.
        新品種缺某些其他的營養. 無關

E.       There are other vegetables currently grown in the region that contain more beta-carotene than the currently cultivated varieties of sweet potato do.
        還有其他比現在的品種更有bc營養<-但無法說明新品種不會成功

magicalkikyo

这个例子太强了！呵呵

floractc

不仅能分析，还能举一反三，呵呵~~~