①能使澄清石灰水变浑浊
②能使湿润的蓝色石蕊试纸变红
③能使品红溶液褪色,加热后又显红色
④能使溴水褪色,再滴加酸化的BaCl2溶液有白色沉淀产生
A:①②③④
B:①③④
C:③④
D:②③④
The story of Lei Haiwei, the winner of The Poetry Conference(诗词大会), again proved that it's necessary not to ____.
形近字组词
逊____ 隐____ 塞____
孙____ 稳____ 赛____