2. 外语
  3. The research also raises the possibility that younger people A(treat) successfully for cancer B(with chemotherapy) may be C(subj

The research also raises the possibility that younger people A(treat) successfully for cancer B(with chemotherapy) may be C(subj

admin2011-03-14  48
问题 The research also raises the possibility that younger people A(treat) successfully for cancer B(with chemotherapy) may be C(subject to) premature aging later in life, a possibility that has D(never been) rigorously examined.
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答案A
解析 treat改为be treated。此处应使用被动语态。
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