12．The desire for self-improvement has led many students to pursue educational opportunities ______ physical classrooms．（　　）
A．withinB．beyondC．beneathD．against

分析 自我提升的愿望使很多學(xué)生追求物理課堂之外的教學(xué)機會．

解答 答案：B解析：A：在…之內(nèi)；B：超過；在…之外；C：在…之下；D：違背；反對．根據(jù)句意"自我提升的愿望使很多學(xué)生追求物理課堂之外的教學(xué)機會．"及所給選項分析可知，本題答案為B選項；其余選項均不符合句意．

點評 本題考查介詞的辨析，做此類題目時一定要清楚各個選項的含義及用法，再結(jié)合句意及其它要求選出最終答案．

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