第16题: [单项选择]From the incident they have learned a lesson: ______ decisions often lead to bitter regrets. A. urgent B. hasty C. instant D. prompt 参考答案:B 答案解析:这是一道词义辨析题。hasty意为“仓促的”;urgent意为“紧急的”;instant意为“立即的;紧迫的”;prompt意为“敏捷的,迅速的”。四个选项意义虽有交叉,但只有hasty最准确。从搭配