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30日，做PREP1套，错15个。 SC：7个 CR：3个 RC：5个 感觉SC和GWD有点不一样。 1－10：4 11－20：5 21－30：2 31－41：4 看来CR比较稳定了，RC似乎也好转了。SC不能放弃啊。 158. Since the start of the space age, more and more littering has occurred in orbits near Earth, often because the intentional discarding of lens caps, packing material, fuel tanks, and payload covers. A. more and more littering has occurred in orbits near Earth, often because B. orbits near Earth have become more and more littered, often from C. orbits near Earth become littered more and more, often resulting from D. there have been more and more littering of orbits near Earth, often because of there had been littering more and more of orbits near Earth, often with 47. So-called green taxes, which exact a price for the use of polluting or nonrenewable fuels, are having a positive effect on the environmental and natural resource base of countries as varied as China, the Netherlands, and Hungary. A as varied as B as varied as are C as varied as those of D that are as varied as E that are varied as are 44. The Environmental Protection Agency frequently puts mandatory controls on toxic substances that present as little risk as one in a million chances to cause cancer. A. as little risk as one in a million chances to cause B. as little risk as one chance in a million of causing C. as little risk as one chance in a million that it will cause D. a risk as little as one chance in a million for causing E. a risk as little as one chance in a million for it to cause | 
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发表于 2008-4-29 23:59:00
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