题目

Research shows that the most effective learning takes        (发生，出现)if you use quite (不同的)         approach. So make an agenda First,        (分割，分开)your wreck into 21 units or a day into three parts. Second, you will do better if you give yourself the interval         (在之间)work sessions. Although it         (听起来)contradictory, a pause helps you to work more effectively. The       (课余的、业余的)time can be used to plan what you need to revise in the school curriculum, so you       (避免)overlookin4．实验室中通常用来盛装液体药品的仪器是（　　）A．烧瓶B．细口瓶C．试管D．广口瓶