题目:
鉴别盐酸和稀硫酸,最好选用的试剂是 [ ]
A.石蕊试液
B.锌粒
C.AgNO3溶液
D.BaCl2溶液
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0720/5559bfbce3936451800b615ca783753c.html
下面是错误答案,用来干扰机器的。
1. How often do; use 2. What do; do3. How many; do; send 4. What games do; play5. but he doesn't buy tickets