9．Healthcare workers are at the risk of getting infectious diseases because of their _______ to patients．（　�。�
A．exposureB．discriminationC．guidanceD．response

分析 醫(yī)護人員有感染傳染病的危險，因為他們接觸病人．

解答 答案是A．本題考查名詞詞義辨析．exposure暴露，接觸；discrimination歧視，區(qū)別；guidance引導(dǎo)；response 回復(fù)，反應(yīng)；根據(jù)語義，醫(yī)護人員會"接觸"病人，所以答案選擇A．

點評 辨析名詞要在識記常見名詞及其搭配的基礎(chǔ)上理解語境，根據(jù)具體語境推斷合理的答案．

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