题目

（2017年山东德州）I've read through this book several times, but I will read it ______ so as to get better understanding. A．more bravely    B．less easily    C．less confidently    D．more carefully 答案：D 【解析】句意: 这本书我已经读了好几遍了，但我会更仔细地阅读，以便更好地理解。A. more bravely 更加勇敢地；B. less easily 更不方便地；C. less confidently更不自信地；    D. more carefully更仔细地。结合句意和语境可知选D。如图，∠MON=25°，矩形ABCD的对角线AC⊥ON，边BC在OM上，当AC=3时，AD长是多少？（结果精确到0.01）