37. The Louisiana Purchase of 1803 [increased] the territory of the United States by [approximate] 846,000 square miles, practically [doubling] the [area] of the United States.
the answer is approximate --> approximately
but I think should be: doubling --> doubled
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21. The snapper, a large-headed fish with a long dorsal fin, is named to its
A B
characteristic way of suddenly, shutting its mouth.
C D
请问以上那里错了那？
应该是D吧
如果改成doubled，这个句子就有了两个谓语，没有连词连接，错。
C错
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发表于 2005-9-15 19:54:00
