题目

 Don’t _______ that we can learn English well just by remembering words. A. take as granted                    B. take this for granted C. take that for granted                D. take it for granted 答案：D 瘦肉精被认为是肉制品业的“三聚氰胺”，属食品行业的违禁药品，瘦肉精的化学式为C12H19ON2Cl3。则下列有关瘦肉精的说法正确的是  A．瘦肉精属于氧化物              B．瘦肉精的相对分子质量为313.5g  C．一个瘦肉精分子中含有两个氮原子 D．瘦肉精中碳元素与氢元素的质量比为12∶19