①“王水”溶解黄金是化学变化；

②金比氢活泼；

③HAuCl₄中，Au的化合价为+3价；

④可以将pH试纸伸入“王水”中测其酸碱度；

⑤“王水”可以用铁质容器盛装．

阅读理解

    My heroes are the Singapore Women's Everest Team．In 2009，they became the first all-women team to climb Mount Everest．The team of six young women trained for seven years before they climbed the mountain．It was difficult for them to train because Singapore doesn't have any snow or any mountains．But they didn't stop，and in the end they made it．They Worked hard every day for their dream so I really admire them．

——Lance Reed, 16, from Britain

    My mum，Mary Evans，is a real hero．I have a very big family, with two brothers and three sisters．My mum works very hard every day to look after us, and she is very busy．She always makes time for everyone and she always listens to me if I have a problem．I really respect my mum because she always looks after my family and makes sure we have everything we need．

——Mark Sterling，l7，from America

    I admire the Salwen family from Atlanta，USA．In 2006, they made a very unusual choice．They decided to sell their house and give half of the money to charity(慈善)．They moved into a smaller house and gave $800,000 to charities in Ghana. I really respect them because they gave their money to people in need．

——William Kloster, 17, from Canada

    I really admire Steve Jobs, the former CEO of Apple．He invented a new kind of technology．Apple technology is very intelligent(智能的)．The products that he made are also really beautiful．Steve Jobs created a successful business in IT．I was very sad when he died in October 2011．I respect him because he changed the way people use technology all over the world．

——Richard Hale, 18，from Australia

根据短文内容，选择最佳答案，并将选定答案的字母标号填在题前括号内。

材料一  雍正五年（1727年）知府沈起元条陈台湾事宜称：“漳泉内地无籍之民，无田可耕，无工可佣，无食可觅。一到台地，上之可以致富，下之可以温饱。”……据统计，台湾归统时约有人口20万左右，到嘉庆中期，总人口已达200万之众。

——陈锋等《中国经济通史》

材料二  1684年，清政府设立台湾府，下辖台湾、凤山、诸罗三县。……从康熙到嘉庆年间，先后担任府儒学教授的36人、训导23人，台湾县儒学教谕36人、训导25人，凤山县儒学教谕34人、训导11人，全部都是福建人。

——陈孔立《台湾历史纲要》