题目

In April, 2009, President Hu inspected the warships in Qingdao,    the 60th anniversary of the founding of the PLA Navy. A. marking            B. marked          C. having marked      D. being marked   答案： A     考查非谓语动词。非谓语动词做状语，其后有宾语，故与逻辑主语是主动关系，且表示的动作与谓语动词的动作同时进行，用现在分词，选A。  

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