庄小威出任北大教授了? (转载)# WaterWorld - 未名水世界
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The 67th Fighter Squadron,
won the Raytheon Trophy for air-to-air excellence for their 6th time in
history in 2013, making them the most-winning squadron in the US Air Force.
won the Raytheon Trophy for air-to-air excellence for their 6th time in
history in 2013, making them the most-winning squadron in the US Air Force.