Which of the following is true about the Braess paradox? A．A mathematician of a university in Seoul came up with it. B．People first identified it in the 1920s. C．The Americans didn't pay much attention to it in the first place. D．It claims that more capacity brings about more efficiency.
A.A B. B．People C. C．The D. D．It E.
【参考答案】
C 属事实细节题。选项A犯了偷梁换柱的错误，第二段第一句提到德国某大学的科学家提出了这个悖论，故错误。选项B同样......