有几道题看过OG问题总结还是有问题请帮助，谢谢
29. In three centuries—from 1050 to 1350—several million tons of stone were quarried in
(A) for the building of eighty cathedrals, five hundred large churches, and some
(B) in order that they might build eighty cathedrals, five hundred large churches, and some
(C) so as they might build eighty cathedrals, five hundred large churches, and some
(D) so that there could be built eighty cathedrals, five hundred large churches, and（A）
(E) such that they could build eighty cathedrals, five hundred large churches, and
在这里building是集合名词吗？还有some tens of thousands of parish churches这里some和tens of thousands of连用还是跳跃修饰churches？
30. What was as remarkable as the development of the compact disc has been the use of the new technology to revitalize, in better sound than was ever before possible, some of the classic recorded performances of the pre-LP era.
(A) What was as remarkable as the development of the compact disc
(B) The thing that was as remarkable as developing the compact disc
(C) No less remarkable than the development of the compact disc
(D) Developing the compact disc has been none the less remarkable than（C）
(E) Development of the compact disc has been no less remarkable as
242. Even their most ardent champions concede that no less than a technical or scientific breakthrough is necessary before solar cells can meet the goal of providing one percent of the nation’s energy needs.
(A) that no less than a technical or scientific breakthrough is necessary
(B) that nothing other than a technical or scientific breakthrough is needed
(C) that a technical or scientific breakthrough is necessary
(D) the necessity for an occurrence of a technical or scientific breakthrough（C）
(E) the necessity for a technical or scientific breakthrough occurring
这俩题都有no less than为什么一个用一个不用？
还有242原文是什么意思？
98. The financial crash of October 1987 demonstrated that the world’s capital markets are integrated more closely than never before and events in one part of the global village may be transmitted to the rest of the village—almost instantaneously.
(A) integrated more closely than never before and
(B) closely integrated more than ever before so
(C) more closely integrated as never before while
(D) more closely integrated than ever before and that（D）
(E) more than ever before closely integrated as
为什么than后是ever before不说不能和时间状语比较吗？
250. The company announced that its profits declined much less in the second quarter than analysts had expected it to and its business will improve in the second half of the year.
(A) had expected it to and its business will improve
(B) had expected and that its business would improve
(C) expected it would and that it will improve its business
(D) expected them to and its business would improve（B）
(E) expected and that it will have improved its business
这种预测多还是少，谁和谁比，怎么判断平行？
50. As a baby emerges from the darkness of the womb with a rudimentary sense of vision, it would be rated about 20/500, or legally blind if it were an adult with such vision.
(A) As a baby emerges from the darkness of the womb with a rudimentary sense of vision, it would be rated about 20/500, or legally blind if it were an adult with such vision.
(B) A baby emerges from the darkness of the womb with a rudimentary sense of vision that would be rated about 20/500, or legally blind as an adult.
(C) As a baby emerges from the darkness of the womb, its rudimentary sense of vision would be rated about 20/500; qualifying it to be legally blind if an adult.
(D) A baby emerges from the darkness of the womb with a rudimentary sense of vision that would be rated about 20/500; an adult with such vision would be deemed legally blind.（D）
(E) As a baby emerges from the darkness of the womb, its rudimentary sense of vision, which would deemed legally blind for an adult, would be rated about 20/500.
这题简直是无从下手，对OG 的解释还是不太懂，
请先搜索原来的问题，如果找不到答案再发贴好吗，谢谢！
如何搜索：
http://forum.chasedream.com/dispbbs.asp?boardID=23&ID=24247&page=1
发贴的时候请每题一贴在标题注明出处和编号，以便其他人搜索和查找，一题多贴讨论时容易混淆，发贴注意事项请见：
http://forum.chasedream.com/dispbbs.asp?boardID=23&ID=36320&page=1
感谢你的理解和支持！
关于如何在CD上搜索：
看到红框里面的搜索了吧，点它！
然后在关键字处填入你要搜索的，比如“OG 29”(不包括引号)，如果搜索不到，还可以尝试"OG-29"，“OG29”；
在搜索论坛处，选择你要搜索的论坛，比如“GMAT语法专区”；
选择关键字搜索，如果你想搜索某个人发的帖子，则选择作者搜索，当然，这个时候关键字就要写作者名字；
其它的就可以不用改了。
这个时候点一下“开始搜索”的按钮，就可以得到你要查询的结果。
当然有的时候要搜索“OG 29”和“OG-29”和“OG29”以后才能得到所有的有关og29的结果。
看完以前的帖子，如果没有人问跟你相同的问题，请开新贴发问，一题一贴，标题注明出处和编号；
如果有相同的问题，可以解决你的疑问，那最好，如果不能解决你的疑问，或者你认为他们的讨论还有不明之处，就在后面跟贴即可。
感谢你的理解和支持！这样一方面你可以最快地得到你要的答案，另一方面还可以让别人更有效的帮助你，同时也减少了整个版面管理的工作量。
随便再说一下，以前有很多有价值的问题，很多NN都有非常精彩的解答，如果搁置不用，岂不是暴殄天物？
thank u
i c and the method is really convenient
thank you
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