11．He has a good command ________ maths and plays an important part ________ our team．（　�。�
A．about； inB．of； toC．to； aboutD．of； in

分析 他數(shù)學(xué)學(xué)得很好，在我們隊發(fā)揮重要作用．

解答 答案：D．have a good command of：對…掌握很好．play an important role in …在…中發(fā)揮重要作用，均為固定搭配，根據(jù)句意，選D．

點評 本題考查短語辨析．學(xué)生應(yīng)加強對固定短語的記憶．

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