问题
选择题
—Your coat is very nice.
— _____. [ ]
A. Not nice
B. Thank you
C. You’re welcome
D. OK
答案
答案：B
搜题请搜索小程序“爱下问搜题”
—Your coat is very nice.
— _____. [ ]
A. Not nice
B. Thank you
C. You’re welcome
D. OK
答案：B
NH4Cl溶液中滴加NaOH溶液至中性：
) + c(Cl