【问题】 Which of the following idioms best suggests the spirit of "tough-minded and independent as a ke

题目:Whichofthefollowingidiomsbestsuggeststhespiritof"tough-mindedandindependentasakeyplayertoconfrontchallengesandconquerdifficulties"?
A、天府之国


B、中流砥柱


C、过门不入


正确答案:中流砥柱

题目解析:暂无解析。