题目

小明为测量老陈醋的密度设计了如下实验步骤：①用天平测出空量筒的质量②向量筒中倒入适量醋，测出醋的体积③用天平测出量筒和醋的总质量。对上述实验步骤所持的观点应是:A、所测出醋的体积一定不准确，不可取; B、能测出醋的密度且步骤合理;C、测出醋的密度值偏大，不可取; D、易使量筒从天平上倾斜而摔碎，不宜提倡.19．Nancy isn't gifted at music in a sense，yet her diligence has more than ______ her lack of gift．A．accounted forB．compensated forC．catered forD．bid for