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    【题目】African Americans ________ about 13% of the population of the United States.

    A.account forB.get acrossC.engage inD.contribute to

    【答案】A

    【解析】

    考查动词短语的词义辨析。句意：非裔美国人约占美国人口的13%。A. account for （比例）占；B. get across通过；C. engage in从事于；D. contribute to有助于。根据“about 13% of the population of”约占人口的13%，可知，此处表示非裔美国人占美国人口的比例。故选A项。

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