20．The schools are supposed be run on the     principle that each child should develop its full potential．（　�。�
A．concreteB．convenientC．formalD．fundamental

分析 學(xué)校的經(jīng)營(yíng)管理應(yīng)該以全面發(fā)展每一個(gè)孩子的潛能為基本原則．

解答 答案D．
考查形容詞辨析．concrete實(shí)在的，具體的；convenient便利的；formal正式的；fundamental基本的，根本的，根據(jù)句意可以推斷出D為最佳答案，"基本原則"．

點(diǎn)評(píng) 本題考查形容詞詞義辨析．形容詞使行文更加形象，熟悉選項(xiàng)的含義，結(jié)合語言環(huán)境選出最符合題意和語言習(xí)慣的表達(dá)．

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