题目内容：
Which of the following arrangements of the classroom can bring about the best teaching effect?
A．[ A ] Arranging the desks in straight rows and providing every minute for the students to listen to the teache B．[ B ] Breaking a class into small groups and letting the students find the group they prefer to stay i
C．[ C ] Putting the students in larger classes and allowing them to discus
D．[ D ] Breaking a class into small groups and asking the students to stay in the fixed groups as the teacher arrange
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