37. (26400-!-item-!-188;#058&003135)
Using technology as new as space-age fabrics and as ordinary as common dry-cleaning chemicals,scientists and historians, in their attempt at cleaning and preserving the American flag that flew over
Fort McHenry in Baltimore in 1814, are hoping that it will then last another 200 years.
(A) and as ordinary as common dry-cleaning chemicals, scientists and historians, in their attempt at
cleaning and preserving the American flag that flew over Fort McHenry in Baltimore in 1814, are hoping
(B) and as ordinary as common dry-cleaning chemicals, scientists and historians are attempting to
clean and preserve the American flag that flew over Fort McHenry in Baltimore in 1814, hoping
(C) and as ordinary as common dry-cleaning chemicals, an attempt by scientists and historians to
clean and preserve the American flag that flew over Fort McHenry in Baltimore in 1814 is being made in the hope
(D) but also as ordinary as common dry-cleaning chemicals, scientists and historians who are
attempting to clean and preserve the American flag that flew over Fort McHenry in Baltimore in 1814, hoping
(E) but also as ordinary as common dry-cleaning chemicals, an attempt by scientists and historians
at cleaning and preserving the American flag that flew over Fort McHenry in Baltimore in 1814 in hopes
AB的区别：虽然答案是B，但是B是否改变了句子的重心？
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发表于 2011-5-8 14:25:52
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发表于 2011-5-8 14:56:21
