题目

请认真阅读下面短文，并根据所读内容在文章后表格中的空格里填入最恰当的单词。 注意：每个空格只填1个单词。请将答案写在答题卡上相应题号的横线上。A person might have a great job, a nice house, and a great group of friends. They might feel they have everything they need, and so, they just settle, stop moving and pushing themselves. After all, their life seems to be going fine. You might have seen this with friends or acquaintances. This is fine for a time; but the problem is, when people stop moving or pushing themselves, the world 下列各组物质中，气体X和气体Y同时通入盛有溶液Z的洗气瓶中(如图)，一定没有沉淀生成的是（ ）XYZANO2SO2BaCl2BNH3CO2Al2(SO4)3CNH3CO2CaCl2DCO2SO2CaCl2