It can be inferre
单选题2014-02-24根据以下资料，回答题：
单选题2014-02-24According to the
单选题2014-02-24The passage indic
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单选题2014-02-24By saying "the on
单选题2014-02-24根据以下资料，回答题：
单选题2014-02-24What is the passa
单选题2014-02-24Dr．Serre's proces
单选题2014-02-24Which of the foll
单选题2014-02-24根据以下资料，回答题：
单选题2014-02-24The author ends t
单选题2014-02-24After 1972 worker
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单选题2014-02-24We learn from the
单选题2014-02-24根据以下资料，回答题：
单选题2014-02-24Our research has
单选题2014-02-24There is not much
单选题2014-02-24Bob was completel
单选题2014-02-24