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题库 / Prep2007E1-SC-59
A new genetically engineered papaya was produced not by seed companies who have been motivated by profit, which was the case with most genetically modified crops previously approved for commercial use, but university and United States Department of Agriculture researchers who allowed growers to use it free of charge.
produced not by seed companies who have been motivated by profit, which was the case with most genetically modified crops previously approved for commercial use, but
produced not by profit-motivated seed companies, the case with most genetically modified crops previously approved for commercial use, but
produced not by profit-motivated seed companies, as was the case with most genetically modified crops previously approved for commercial use, but by
not produced by profit-motivated seed companies, which was the case with most genetically modified crops previously approved for commercial use, but was produced by
not produced by seed companies who have been motivated by profit, the case with most genetically modified crops previously approved for commercial use, but by
E： are not produced by...but by不平行；are produced not by...but by...平行；are not produced by.... but are produced by...平行但是wordy，且who 不用来修饰impersonality entity, 所以E错；答案C
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