题目内容
12．Thesediscoveries （发现） have opened up a whole new field of the medicine．分析 这些发现为医学开创了全新的领域．
解答 答案：discoveries．
根据提示汉语结合语境推测句意是"这些发现为医学开创了全新的领域．"，由设空处前面的these 判断设空处应填可数名词复数形式，提示词"发现"的名词是 discovery，所以答案是：discoveries
点评 做这类题型，首先根据所给汉语明确句子所要考查的单词或短语的拼写，再结合相关语法知识对单词或短语做出形式上的变化．
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