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- 2009-11-23
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?Q23. ?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
我选了D |
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