题目

根据下列实验操作和现象所得到的结论错误的是（）选项实验操作、现象实验结论A将1～2mL水滴入盛有1～2g 气体的试管中，产生的气体使带火星的木条复燃与水反应产生B往溶液中滴加稀盐酸，溶液中出现白色浑浊不能说明非金属性C纯净的在盛满的集气瓶中安静地燃烧，发出苍白色火焰燃烧不一定需要参与D在试管中加入0.5g淀粉和4mL 2mol/L 溶液，加热。待反应充分后冷却溶液，向其中加入少量新制的并加热，未出现砖红色沉淀淀粉没有水解 A . A B . B C -My grandmother passed away last week because of a heart attack.-I'm sorry to hear that. [     ]A. took awayB. broke awayC. diedD. was in hospital