题目

下列叙述不正确的是 A．可用溴的四氯化碳溶液区分直馏汽油和裂化汽油 B．蛋白质溶液中加入浓的硫酸铵溶液会有蛋白质析出 C．甲烷、苯、乙醇、乙酸和酯类都可以发生取代反应 D．相对分子质量相近的醇和烷烃，烷烃的沸点远远高于醇 答案：D . Barack Obama told millions watching him that his grandmother’s influence on _______ he is and the way he views the world was significant. A. how                      B. who                       C. where                     D. which