下列物质能使紫色石蕊试液变蓝的是( ) A.HCl B.NaCl C.NaOH 发布时间:2017-04-13 10:25 │ 来源:www.tikuol.com 题型:选择题 问题: 下列物质能使紫色石蕊试液变蓝的是( )A.HClB.NaClC.NaOHD.H20
题型:选择题 ---- I’d like to make an appointment with Doctor Smith . Would 9 o’clock tomorrow be all right ? ---- . Her schedule is full in the morning .A.Yes , she’s free thenB.I’m afraid not C.You must be kiddingD.Well , it depends 查看答案