众所周知，词汇是GRE考试的基础。那么怎样才能掌握GRE必备的词组呢？新东方小编在这里为大家总结一些常用的核心词组，希望对各位备考有帮助。

　　call something into question 对……产生怀疑

　　释义

　　If something is in question or has been called into question, doubt or uncertainty has been expressed about it.

　　例句

　　The paper says the President's move has called into question the whole basis of democracy in the country.

　　GRE

　　The results of the experiments performed by Elizabeth Hazen and Rachel Brown were provocative not only because these results challenged old assumptions but also because they called the prevailing methodology into question.

　　Elizabeth Hazen和Rachel Brown的实验结果让人感到震惊，因为它们不但挑战了传统的假设，更让人对主流的方法论产生了质疑。

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(实习编辑：刘伯罡)