单选题 Comco, Inc. became the leading supplier of computer ___last year, less than ten years after it was founded.
【正确答案】 D
【答案解析】本题考查名词辨析。此处句意为“康可公司去年成为计算机零部件的主要供应商，这距它成立不到十年”，故选择parts。其他选项的词义不符合句意。