These proposals sought to place greater restrictions on the use and copying of digital information than______ in traditional med

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问题 These proposals sought to place greater restrictions on the use and copying of digital information than______ in traditional media.

选项 A、exist
B、exists
C、existing
D、to exist

答案A

解析 考查比较状语从句。此处than是引导定语从句的特殊关系代词,相当于tha(what)…,在从句中充当主语。than既然引导从句,那么可排除非谓语动词[C]、[D];本句中的两个被比较项是restrictions,因此答案为[A]。
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