This is a kind of effective classroom teaching students learn independently and cooperati

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(答案→)A. where
B. which
C. what
D. when
解析：句意：这是一种有效的课堂教学，在这里学生独立合作的学习。这里使用的是定语从句，先行词是classroom teaching，定语从句中不缺主宾表，缺少的是地点状语，in the classroom teaching，所以用where引导定语从句，选A。