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Riding School:    You can start horse-riding at any age. Choose private or group lessons any weekday between 9 a.m. and 8:30 p.m. (3:30p.m. on Saturday). There are 10 kilometers of tracks and paths for leisurely rides across farmland and open country. You will need a riding hat.    Opening Hours: Monday through Friday: 9:00a.m.---8:30 p.m.    Phone: (412) 396---6754 Fax: (412)396---6752 Sailing Club:     Our Young Sailor’s Course leads to the Stage 1 Sailing qualification.You’ll learn how to sail safely and the course also covers sailing theory and first aid.Have fun with othe在冬奥会中,冰壶运动员在冰壶的前面擦扫冰面使冰壶滑行更远,这是通过减小接触面的粗糙程度来___________(选填“增大”或“减小”)摩擦力,而冰壶受到重力的施力物体是___________,重力的方向是___________.在高山滑雪比赛中,运动员在下滑过程中碰撞标志杆使杆弯曲,说明力能使物体的____________发生改变.
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