I wonder how many ______ (手术) ORBIS doctors perform during their visit to a poor country.

flyskyting1 1年前 已收到1个回答 举报

snowfairy丽 精英

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句意:我先知道有多少个奥比斯手术医生进行访问一个贫穷的国家,根据how many +可数名词的复数可知,故答案填operations。

1年前

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