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[月度] 时而约意月度寂静整理(共63只,最后更新:12/26 - 13:45)

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271#
发表于 2011-12-19 16:14:01 | 只看该作者
42 和46麻烦也并入前面。。。楼主楼主快更新~~~~~~~~ 爱你!
272#
发表于 2011-12-19 16:21:54 | 只看该作者
53 股票价格与地域关系 是不是也可以并入38 投资分散化啊,两个的内容一模一样。。。
273#
发表于 2011-12-19 16:41:55 | 只看该作者
45与植物抵御害虫合并
274#
发表于 2011-12-19 18:26:26 | 只看该作者
275#
发表于 2011-12-19 19:47:37 | 只看该作者
25篇好像是三篇在一起的,一个是讲水生生物怎么进化出腿的,一个讲恐龙和鸟的幼年情况,还有一个是讲farming和hunting 的
276#
发表于 2011-12-19 20:06:42 | 只看该作者
贴一篇今天考到的GWD原题吧
Until recently, zoologists believed that all species of phocids (true seals), a pin-nipped family, use a different maternal strategy than do otariids (fur seals and  sea lions), another pinniped family. Mother otariids use a foraging strategy. They acquire moderate energy stores in the form of blubber before arriving at breeding sites and then fast for 5 to 11 days after birth. Throughout the rest of the lactation (milk production) period, which lasts from 4 months to 3 years depending on the species, mother otariids alternately forage at sea, where they replenish their fat stores, and nurse their young at breeding sites. Zoologists had assumed that females of all phocids species, by contrast, use a fasting strategy in which mother phocids, having accumulated large energy stores before they arrive at breeding sites, fast throughout the entire lactation period, which lasts from 4 to 50 days depending on the species. However, recent studies on harbor seals, a phocids species, found that lactating females commenced foraging approximately 6 days after giving birth and on average made 7 foraging trips during the remainder of their 24-day lactation period.
The maternal strategy evolved by harbor seals may have to do with their small size and the large proportion of their fat stores depleted in lactation. Harbor seals are small compared with other phocids species such as grey seals, all of which are known to fast for the entire lactation period. Studies show that mother seals of these species use respectively 84 percent, 58 percent, and 33 percent of their fat stores during lactation. By comparison, harbor seals use 80 percent of their fat stores in just the first 19 days of lactation, even though they occasionally feed during this period. Since such a large proportion of their fat stores is exhausted despite feeding, mother harbor seals clearly cannot support all of lactation using only energy stored before giving birth. Though smaller than many other phocids, harbor seals are similar in size to most otariids. In addition, there is already some evidence suggesting that the ringed seal, a phocids species that is similar in size to the harbor seal, may also use a maternal foraging strategy.

T-4-24:T-733
It can be inferred from the passage that the females of all phocids species differ from the females of all otariid species in that the female phocids
A.    have shorter lactation periods
B.    consume more food during lactation
C.    consume a higher proportion of fat stores
D.    forage for food occasionally during their lactation periods
E.    deplete a smaller percentage of their fat stores during their lactation periods

T-4-25:T-7-34
The primary purpose of the passage is to
A.    present evidence that several phocids species use the maternal fasting strategy
B.    explain why the maternal strategy typically used by phocids is different from the maternal strategy used by otariids
C.    argue that zoologists’ current understanding of harbor seals’ maternal strategy is incorrect
D.    describe an unexpected behavior observed in harbor seals and propose an explanation that may account for the behavior
E.    describe evidence concerning the maternal strategy of the harbor seal and suggest that the harbor seal belongs to the otariid rather than to the phocids family

T-4-26:T-7-35
According to the passage, until recently zoologists believed which of the following about all phocids mothers?
A.    Their fasting periods after giving birth were typically shorter than those of otariids.
B.    Their lactation periods were generally as long as those of comparably sized otariids.
C.    They acquired only moderate energy stores in the form of blubber before arriving at breeding sites.
D.    They depleted less than a third of their stored body fat during lactation.
E.    The replenished their fat stores only after their lactation period ended.

T-4-27-T-7-36
The author of the passage mentions ringed seals most probably in order to


A.    provide an example of a phocid species that fasts throughout its entire lactation period
B.    provide an example of a phocid species whose maternal strategy is typical of phocid species
C.    provide an example of a phocid species that may deplete an even higher proportion of its fat stores during lactation than harbor seals do
D.    support the assertion that harbor seals are smaller than many other phocids
E.    support the assertion that harbor seals’ maternal strategy may be related to their small size
277#
发表于 2011-12-19 23:16:19 | 只看该作者
谢谢
278#
发表于 2011-12-20 09:26:06 | 只看该作者
多谢LZ~为筒子们造福~辛苦辛苦~
279#
发表于 2011-12-20 17:02:19 | 只看该作者
内容好多,实在来不及看了,只看了一半,后天就考了,愁啊
280#
发表于 2011-12-20 18:16:05 | 只看该作者
问个问题,32题**学者高估了quakers对妇女反对男权婚姻的影响(GWD原文)
这个黑体是答案还是红色是答案?
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