题目

One of my favourite【1】 (hobby) is hiking. When I go hiking, I wil1 wear proper clothing and hiking shoes for the current weather conditions. And I will let my family and friends know where I will go and when I will return. Also, I will carry a compass and GPS unit,【2】can guide me and locate my position. What's more, I will take enough food and water【3】 (keep) me energetic, and emergency supplies to survive dangerous situations.19、新中国成立后，在中央政府关怀和全国人民大力支援下，经过西藏各族人民的团结奋斗，西藏的经济和社会发展取得了巨大的成就。保障西藏经济社会发展的基本政治制度是 A．民族区域自治 B．民族平等、民族团结和各民族共同繁荣 C．人民代表大会制度     D．以公有制为主体，多种所有制经济共同发展