51. 風能發電和火電發電
V2 from davidwu27深刻记得某一题说风能发电厂比火电厂更占用土地面积破坏植被。我选的是，火电所需的煤是来自大大破坏植被的煤矿厂的···
52.拍賣畫
V1 from vvvjy8868 700 .貌似是说拍卖会上，历史超过100年的卖了1.45(记不清了)million， 反正很贵，但是当代画家的画都拍不了那么高的价格，解释题，我选了被转卖过多次的作品比没转卖过的作品卖的贵
v2 from tree830224艺术品拍卖：去年拍卖会上，艺术家的作品最终成交价都很高，可是相关人员还是对艺术的前景表示担忧，问evaluate。(选项有：Few serious bidders participate in the auction enable no competitors , thus increasing the price; 担心拍卖会的高价，会使得艺术界逐渐商业化;)
53 犯罪率真的低了么
vvvjy8868 700 说是为了降低某个地方的犯罪率，在那装了照相机还是什么的，结果发现，那里报案说自己被抢的人少了比别的地方少了，但是camera显示哪个地方 的mug没有减少，问解释，我学的好像是什么保险公司有个什么政策，所以被抢的人不愿意去报案。。
54 傳染病
from zy900303就是大人很容易感染某个病，但是小孩子们却不打疫苗，因为痛，最近发明了一个新的疫苗，不疼。可是小孩子还是不去打。问assumption?
答案应该是小孩不会把那个病传染给大人。
考古和变体题
From 奔跑的悟空GWD-TN-1GWD1-Q40:
Until mow, only injectable vaccines against influenza have been available.Parents are reluctant to subject children to the pain of injections, but adults, who are at risk of serious complications from influenza, are commonly vaccinated.A new influenza vaccine, administered painlessly in a nasal spray, is effective for children.However, since children seldom develop serious complications from influenza, no significant public health benefit would result from widespread vaccination of children using the nasal spray.
Which of the following is an assumption on which the argument depends?
A.Any person who has received the injectable vaccine can safely receive the nasal-spray vaccine as well.
B.The new vaccine uses the same mechanism to ward off influenza as jnjectable vaccines do.
C.The injectable vaccine is affordable for all adults.
D.Adults do not contract influenza primarily from children who have influenza.
E.The nasal spray vaccine is most effective when administered to adults.
一种新型的vaccine,使用方法不是注射而是喷洒，因此适合儿童使用，但是儿童不会因为这个influenza产生严重的并发症，因此认为在儿童中广泛使用vaccine不会产生significant public benefits.-------前提：如果这个infuenza可以由儿童传染给大人，那么儿童使用这个vaccine就是断绝这个传染途径，从而有了public benefits.
FROM clumsyorange PREP Until now, only injectable vaccines against influenza have been available. They have been used primarily by older adults, who are at risk for complications from influenza. A new vaccine administered in a nasal spray has proven effective in preventing influenza in children. Since children are significantly more likely than adults to contract and spread influenza, making the new vaccine widely available for children will 美国GREatly reduce the spread of influenza across the population.英语作文
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