220. For almost a hundred years after having its beginning in 1788, England exiled some 160,000 criminals to Australia. (A)For almost a hundred years after having its beginning in 1788, (B)Beginning in 1788 for a period of a hundred years, (C)Beginning a period of almost a hundred years, in 1788 (D)During a hundred years, a period beginning in 1788, (E)Over a period of a hundred years beginning in 1788,
这里E的beginning为限定修饰
237. It seems likely that a number of astronomical phenomena, such as the formation of planetary nebulas, may be caused by the interaction where two stars orbit each other at close range.
(A) may be caused by the interaction where two stars orbit each other
(B) may be caused by the interaction between two stars that each orbit the other
(C) are because of the interaction between two stars that orbit each other
(D) are caused by the interaction of two stars where each is orbiting the other
(E) are caused by the interaction of two stars orbiting each other
以前的讨论说这里E为非限定修饰.好于B的特指.
怎么回事?
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