In the 1997 college entrance examination Chinese test, there was such a true or false question: "When this wonderful TV series was broadcast, it was almost deserted in the alleys as people stayed at home to watch TV, and the streets seemed quiet." A considerable number of candidates made an affirmative judgment without much thought, and as a result, they all lost 3 points for it. The precious 3 points, for some candidates, may mean that they can not go to university! It can not help but make people sigh: this "deserted alleys" has really "pitfall" ten thousand people!