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It was President Xi Jinping ________ visited the navy troops and urged to strengthen naval force on April 9,2013.

A.when ! Z" B% W" X8 `6 i6 I8 f2 _) b B.which( C0 j* O6 _9 c, J
C.that
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D.he( W9 T' ]" I: Q0 U

答案C

解析