According to the race rules, dogs for race must have ______.
According to the race rules, dogs for race must have ______.
发布时间：2025-08-13 07:54:18
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答案：正确答案:proof of certain vaccines and check-ups解析:此处要求填入名词性短语作have的宾语。题干中have与原句require为同义,文中说,对于这类比赛,兽医会在现场对狗进行检查,比赛规则里也对——些疫苗和检查的保证作出要求,require后的部分proof of certain vaccines and check-ups符合题干语法和意思要求,为本题答案。
