第5题: [单项选择]The fall in the number of deaths from heart disease is generally ______ improvements in diet. A. attributed to B. adjusted to C. adapted to D. accustomed to 参考答案:A 答案解析:短语辨析题。attribute to“把……归咎于……”;adjust to“调整以适应……”;adapt to“使适应……”;accustom to“使习惯于……”。根据句意,A为正确答案。句意:因