19．The government must find an _________policy to deal with this problem．（　�。�
A．effectiveB．effectC．efficientD．effort

分析 政府必須找到有效的政策來解決這個問題．

解答 答案是A；本題考查名詞的定語； effective adj．有效的； 起作用的； effect n．影響； efficient adj．有效率的；effort  n．努力；題干中需要的是policy的定語；an effective policy 有效的政策，故答案是A．

點評 本題考查的是選用恰當?shù)亩ㄕZ；首先理解各選項的詞性和詞義，結合語境選擇符合語法和邏輯的選項．

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