9. The proposed urban development zones do not represent a new principle; it was employed in "Operation Bootstrap" in Puerto Rico.
(A) do not represent a new principle; it (B) represent not a new principle, but one that (C) are not a new principle; the same one (D) are not a new principle, but one that (E) are not new in principle; it
答案为B 疑问1：represent not结构，应该是do not represent 才对啊， 疑问2：one that 是否有重复之嫌？
11. The lack of complete historical records from the mid-to-late 1800's have made some Black inventions difficult to trace to their originators.
(A) have made some Black inventions difficult to trace to their originators. (B) have made for difficulties in tracing some inven- tions by Blacks to their originators (C) have made it difficult to trace some inventions by Blacks to their originators (D) has made it difficult to trace some inventions to their Black originators (E) has made it difficult in tracing some Black inventions to their originators
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发表于 2003-5-11 20:19:00
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