填空题
英语四级
2008-11-17
penicillin has been found in the milk of 8 cows.
参考答案
暂无
答案解析
【解析】选[F]。空后的名词表明此处应填一形容词。此句是说,在一些被打过针的牛的奶里可以找到盘尼西林,[F] treated有“被打过针”的意思.
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