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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
as with the case 是as引导的一个从句，修饰主句，没有问题。
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