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0. For many people, household labor remains demanding even if able to afford household appliances their grandparents would find a miracle. (A) even if able to afford household appliances their grandparents would find a miracle (B) despite being able to afford household appliances their grandparents would find a miracle (C) even if they can afford household appliances their grandparents would have found miraculous (D) although they could afford household appliances their grandparents would find miraculous (E) even if they are able to afford household appliances which would have been a miracle to their grandparents （C）
我选的是b ,为什么要用would have done? 23. According to United States Air Force officials, a cannon shooting dead chickens at airplanes has proved helpful to demonstrate what kind of damage can result when jets fly into a flock of large birds. (A) shooting dead chickens at airplanes has proved helpful to demonstrate (B) shooting dead chickens at airplanes has proved itself helpful as a demonstration of (C) shooting dead chickens at airplanes proves itself helpful as demonstrating (D) that shoots dead chickens at airplanes proves itself helpful to demonstrate (E) that shoots dead chickens at airplanes has proved helpful in demonstrating （E）为什么要用完成是? | 
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发表于 2004-9-29 14:43:00
