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assert widen([0, 2, 4], App("f", [Var(0), Var(1), Var(2)])) == App("f", [Var(0), Var(2), Var(4)])
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Inman was the lead board member on scene after last year’s midair collision near Washington, D.C., that killed 67 people after an airliner collided with a U.S. Army Black Hawk helicopter. He also oversaw the initial investigation of the crash of a UPS cargo plane in Kentucky that killed 15 people in November.
周伟不想放弃,他和其他几位热心居民挨家挨户听意见:有的经济困难,一时出不起钱;有的已不在楼里住,不愿花钱;有的想等政府拆迁,得一笔拆迁款……