读图，回答下列问题：
His ____ (谈论) not only broke the ice, but aroused everyone's interest.
根据句意及汉语提示完成单词
①There is a bus ____ (车站) in our town (城镇).
② —Is this a big ____ (旅馆)?
—Yes, it is.
③My mother and my aunt are ____ (警察) .
④ —What's your father's job?
—He is a hotel ____ (经理).
⑤Daming's mother is a ____ (护士) in a hospital.
三个相同金属球，原来有两个小球带电量大小相等，相互间的引力为F，用第3个不带电的小球，依次接触两个带电球后再移走，则原来两个带电小球之间的相互吸引力变为（ ）
