NASA has made a ________ that our earth has no threat associated with the film 2012 which is based o

题目简介

NASA has made a ________ that our earth has no threat associated with the film 2012 which is based on pure myths.

A．clarification

B．classification

C．identification

D．presentation

题型：单选题难度：中档来源：不详

考查名词辨析。clarification澄清，classification分类，identification辨别身份，presentation呈现，根据语境是NASA已经澄清了我们的地球没有威胁，所以选A。