题目内容
Measures __________at the meeting yesterday must be taken to ________Influenza A from spreading all over the nation.
A referring to; prevent B refering to; protect
C referred to; prevent Drefered to; protected
C
解析:
第一空考察非谓语作后置定语,会议上措施被提到,所以是被动,用过去分词形式,refer的过去分词要双写r; 第二空prevent后跟要阻止的,protect后接的是要保护的。
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