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2010--2012三年考研英语二真题及答案
The outbreak of swine flu that was first detected in Mexico was declared a global pandemic on June 11, 2009, in the first designation by the World Health Organization of a worldwide pandemic in 41 years.
The outbreak of swine flu that was first detected in Mexico was declared a global pandemic on June 11, 2009, in the first designation by the World Health Organization of a worldwide pandemic in 41 years.
