求助-老管两题,很焦虑...

G1-Q17

The spacing of the four holes on a fragment of a bone flute excavated at a Neanderthal campsite is just what is required to play the third through sixth notes of the diatonic scale—the seven-note musical scale used in much of Western music since the Renaissance.  Musicologists therefore hypothesize that the diatonic musical scale was developed and used thousands of years before it was adopted by Western musicians.

Which of the following, if true, most strongly supports the hypothesis?

A.      Bone flutes were probably the only musical instrument made by Neanderthals.

B.       No musical instrument that is known to have used a diatomic scale is of an earlier date than the flute found at the Neanderthal campsite.

C.      The flute was made from a cave-bear bone and the campsite at which the flute fragment was excavated was in a cave that also contained skeletal remains of cave bears.

D.      Flutes are the simplest wind instrument that can be constructed to allow playing a diatonic scale.

E.       The cave-bear leg bone used to make the Neanderthal flute would have been long enough to make a flute capable of playing a complete diatonic scale.

请问为什么B不对呢?

Which of the following is a consideration in favor of the company’s implementing its plan to develop the prototype?

A.      There is a considerable degree of variation in shade of color between weeds of different species.

B.       The shade of color of some plants tends to change appreciably over the course of their growing season.

C.      When crops are weeded manually, overall size and leaf shape are taken into account in distinguishing crop plants from weeds.

D.      Selection and genetic manipulation allow plants of virtually any species to be economically bred to have a distinctive shade of color without altering their other characteristics.

E.       Farm laborers who are responsible for the manual weeding of crops carry out other agricultural duties at times in the growing season when extensive weeding is not necessary.

为什么B不对呢?

谢谢指点,有点感觉了.

突然对另一个也有点感觉了,是不是里面的SOME PLANTS有点以偏盖全的意思?

第二题我是这样理解的：

题目中指的是“distinguish weeds from crop plants by differences in shade of color”是将weeds从crop plants中区别开来。

而选项B是说：The shade of color of some plants tends to change appreciably over the course of their growing season.颜色随着生长季节改变，是一种plants不同阶段的区别，显然与文中提到的“不是不同植物之间的区别”不一样。

D是说allow plants of virtually any species to be economically bred to have a distinctive shade of color，是指不同植物之间的颜色区别，所以是正确选项。

不知我这样理解是否正确，还望大牛们指正。

其实我也很焦虑，对于逻辑感觉自己没有太多的提高。咳。 

这两题我做的时候也很困惑，希望能有人给出解答。

第二题5楼解答差不多是对的，但是要强调一点，就是那个新发明的分离机工作原理是根据杂草和庄稼色泽不一样来分离出杂草，B是不相关项，B说庄稼颜色一直在变，和分离机工作原理没有特别明显的关系，甚至颜色变得和杂草一样了，反而分离不出杂草了。

第一题B其实不是无关选项，B的关联性体现在B不但为原假设排除了一个负面证据而且B是整个假设imply的，但是B不如E强，因为E从假设以外带来了新的支持证据。

p.s.: 这里我一开始想错了，B是weaken,而非implied。参13楼。