E. 解决关于技术使用的分歧意见（未涉及解决争端，非正确选项）
C. 对意外的调查结果作出解释（通篇解释 paradox: IT 没有带来预料中的经济优势，即使段末说明了一些好处，也是和其他补充一起获得，不是单纯依靠 IT, 正确）
unexpected findings = "productivity paradox"

定位:seamstresses, meanwhile, were impatient with the remaining restrictions on their right to clothe women.
seamstresses女裁缝
没有看懂这篇文章

定位句:yet no countries-with the possible exceptions of Malaysia and Thailand-have even approached their success.大部分国家都失败了(除了泰国和马来西亚).理解错了,以为泰国失败了.
A 承认一个广泛传播的说法的不真实性,没有说不真实,只是有例外
B对,说明有例外

” Aspens' need for fire may seem illogical since aspens are particularly vulnerable to fires; whereas the bark of most trees consists of dead cells, the aspen's bark is a living, functioning tissue that-along with the rest of the tree-succumbs quickly to fire”，前面提及Aspen需要火看起来不合理因为易受到伤害， whereas后转折，大不多数树树皮是死的，而Aspen树皮是活的，抵挡不住火
succumb：v. 屈服; 屈从; 抵挡不住(攻击、疾病、诱惑等);bark树皮

定位: If a clone loses many stems simultaneously, the resulting hormonal imbalance triggers a huge increase in new, rapidly growing shoots tha.
t can outnumber the ones destroyed.
如果有火（或者别的disturbance）这一篇地区的树都会挂，由此带来的imbalance会引发大量新的快速发育的枝芽，并且新芽数量比因为火烧而挂了的还多
其实这个disturbance是刺激杨树细胞生长的，通过产生不平衡的荷尔蒙使杨树产生新细胞。A这个选项乍一眼看上去是一个负面的表达，大家肯定是想找disturbance带给杨树的好处。但是仔细读文章就能发现其实不平衡才会刺激新细胞产生，和文章说的意思一样。

For example, G10 garnets, a type of garnet typically found in diamond-rich pipes（D）, are lower in calcium and higher in chrome(C) than garnets from barren pipes. Geochemists John Gurney showed that garnets with this composition were formed only in the diamond-stability field(E); more commonly found versions(B） came from elsewhere in the mantle.
这里的同意替换比较难.

A明显说的是后面的氧化问题。和这个G10没关系.

In the last sentence of the passage, the author refers to "recent archaeological discoveries" most probably in order to?
White发现Martin的thesis取决于人类到来的时间与大型动物的灭绝的时间相同，而Krech虽然意识到了时间有争议，但他并没有提出异议。但最近的考古研究证明人类到来的时间其实早了11000年。因此说明人类到来与灭绝没有直接关系。因此反对Martin和Krech，也就是支持了White。

Which of the following, if true, would most weaken Krech's objections to Martin's theory?
C的问题是，选项想用“同因反果”来削弱K的观点，即，P era有climatic change, 有灭绝，其他era也有climatic change, 但是却没有灭绝，所以climatic change不是导致灭绝的原因。但是选项中并没有提到其他era没有灭绝这件事，这是我们自己脑补的事实，即选项中并没有提供“果”，所以错
有关B的argument是：“Nor were extinctions confined to large animals: small animals, plants, and insects disappeared, presumably not all through human consumption.”意思是说，不光大动物灭绝了，小动物和植物昆虫也灭绝了，不可能人类还consume小动物啥的吧（所以不可能是human consumption导致大动物灭绝）。所以B说人类确实use了这些小动物，就是一个很直接的削弱。

错误定位到White observes that Martin's thesis depends on coinciding dates for the arrival of humans and the decline of large animal species, and Krech, though aware that the dates are controversial, does not challenge them.这里M并没有提出对日期的争论!
正确定位Krech also contradicts Martin's exclusion of climatic change as an explanation by asserting that widespread climatic change did indeed occur at the end of the Pleistocene.
这句话没理解,意思是K反驳了M把气候变化排除掉.

D. 是这些norms受到了mercantilist notions的支持，而不是norms帮助贯彻了mercantilist notions，故错误

原文：Clearly price promotions are generally run at a loss, otherwise there would be more of them.
所以 没有经常举办这个活动的原因是因为run at a loss即亏本，没有利润
问题问价格促销对于利润的影响（即没有利润）的证据是什么，就是因为没有经常举办这个活动呀，没有经常举办这个活动就是它亏本的证据

A.他们证实了研究人员对地幔内部对流可以垂直抬升或降低地球表面的理论的怀疑。
D.他们已经让以前持怀疑态度的研究人员相信，非洲南部地下地幔深处的岩层可能创造了superwell.
没注意问题里面的细节词语!!不是confirm doubt.
做CR也经常错这个

定位点在However, recent technological advances have allowed geophysicists to make three-dimensional "snapshots" of the mantle by measuring vibrations, or seismic waves, set in motion by earthquakes originating in the planet's outer shell and recording the time it takes for them to travel from an earthquake's epicenter to a particular recording station at the surface. Because geophysicists know that seismic waves become sluggish in hot, low-density rock, and speed up in colder, denser regions, they can now infer the temperatures and den- sities in a given segment of the interior.我看成后面一句话了.

have greatly downsized复数，表明主语是companies而不是B company。

tech = plant varieties + chemical
文章后半段分为：
1. 教育程度 ⬆️ => plant ⬆️ chemical ⬇️
2. 市场连接 ⬆️ => both ⬆️
3. 可用未开垦土地 ⬆️ => both ⬇️
4. kinship ⬆️ => plant ⬆️ chemical ⬇️
在不用想太复杂的情况下，看完题干就会想到是两个都⬇️的情况，就是D了

🐎：
文中只有一处出现了1997年之前24年间GDP在增长这句话，“One point these journalists overlooked is that in 1997, as in the twenty-four years immediately preceding it, the real GDP per capita grew nearly one-half percent a year more slowly than it had on average between 1873 and 1973. ”就说了24年间的比1873-1973年间的more slowly，slowly的原因没有介绍，后面说的都是1997年与1873-1973年的对比了，没有再提过这24年。
在1997年，正如之前的24年一样，实际的人均GDP增长速度比起在1873-1973年之间的增长速度放缓了0.5%。-> 只给出了增长放缓的事实，没有阐述背后的原因

E then多余，过去分词已经表示了when引导状语从句一样的时间概念；they和their完全指代single locusts，不优

简单来说，过程是这样的，有两种情况：
1，在同一个岛上进化，然后分开，这样他们会发展呈different spcies， 但是closely related。
2，在不同的岛上单独分开进化，这样的结果是，在一个岛上的anoles更加closely related to 同一个岛上的其他种类的anoles，而不是不同岛上的相同anoles。

主要目的是≠文章都讲了什么
We can eliminate (C) because the author didn't write the passage to outline major questions. If this were true, we'd see more of an outline-like breakdown of more than one question. Instead, we have a deep dive into a single question ("How do these two groups define behavioral?") and a single example (Shaker) used to address that question.

B选项，文章第一段话“These communities\' agricultural systems-which were \"intensive\" in the use of labor rather than \"extensive\" in area-may have given rise to polit- ical leadership that managed both labor and food resources. ”说明了这是个intensive agricultural systems，因此后面的内容都和extensive无关