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1. the automobile compnay announced that the average price of next year's models would decrease for-tenths of one percent, amounting to about $72, as compared with comparably equipped cars and trucks this year. (B) the automobile comapny announced that the average price of nex year's cars and trucks would decrease for-tenths of one percent, or about $72, from that of coparable equipped models this year. B是正确答案,但我选A, 与原文一样。“or about $72" 不是改变了句子的原意了吗
2. the Anasazi settlements at Chaco Canyon were built on a spectacular scale with more than 75 careflly engineered structures, of up to 600 rooms each, were connected by a complex regional syste of raods. (B) with more than 75 carefully engineered structures, of up to 600 rooms each, (E) of more than 75 carefully engineered structures of up to 600 rooms each had been 正确答案选B, 我选了E
3. Africa's black rhino population in the mid-1970's numbered about 20,000, ten times the estimated population of 2,000 in 1997. (C) more than the population's estimated amount 正确答案是A,与原文一样, 我选了C, 难道”than" 也可以省略??
4. Paleontologist Stephen Jay Gould has argued that many biological traits are not the products of natural selection, favored due to their enhancement of reporduction or srvival, but that they are simply random by-products of other evolutionary development. ( B) due to the reporduction or survial they enhance, but they are (D) because they enhance reporduction or survival, but are 正确答案是D, 我选了B, 请问becuase 与 becuase of 的用法啊 |
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