问题
选择题
— What would you like for dinner?
— ______________[ ]
A. I'd like some beef.
B. OK.
C. I like beef.
答案
答案：A
搜题请搜索小程序“爱下问搜题”
— What would you like for dinner?
— ______________[ ]
A. I'd like some beef.
B. OK.
C. I like beef.
答案：A
HCOO-+H3O+
HCO3-+H+