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Welcome to Holker Hall & GardensVisitor InformationHow to Get to HolkerBy Car: Follow brown signs an A590 from JB6, M6. Approximate travel times: Windermere-20 minutes, Kendal-25 minutes, Lancaster-45 minutes, Manchester-1 hour 30 minutes.By Rail: The nearest station is Cark-in-Cartmel with trains to Carnforth, Lancaster Preston for connections to major cities & airports.Opening TimesSunday-Friday (closed on Saturday)11:00 am-4:00pm,30 March-2nd November.Admission Charges Hall & GardensGardensAdults:£12.00£8.00Groups£9£5.5 Special EventsProducers: Market 13th AprilJoin us to ta从离地面高为H的阳台上以速度υ竖直向上抛出质量为m的物体,它上升高度h后返回下落,最后落到地面上,则以下说法中正确的是(不计空气阻力)[   ] A、物体在最高点的机械能为mg(H+h); B、物体落到地面时的机械能为mg(H+h)+; C、物体落到地面时的机械能为mgH+; D、物体在运动过程中的机械能保持不变。  
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