题目内容：
Which of the following arrangements of the classroom can bring about the best teachingeffect?
A．Arranging the desks in straight rows and providing every minute for the students to listen tothe teacher． B．Breaking a class into small groups and letting the students find the group they preferto stay in．
C．Putting the students in larger classes and allowing them to discuss．
D．Breaking a class into small groups and asking the students to stay in the fixed groupsas the teacher arranges．
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