问题
选择题
-I wonder if I could possibly use your car for tonight.
-________.I'm not using it anyhow.[ ]
A．Sure, go ahead
B．I don't know
C．Yes, I indeed
D．I don't care
答案
答案：A
搜题请搜索小程序“爱下问搜题”
-I wonder if I could possibly use your car for tonight.
-________.I'm not using it anyhow.[ ]
A．Sure, go ahead
B．I don't know
C．Yes, I indeed
D．I don't care
答案：A
CH3COO- + H3O+
HCO3- + H+ 
HSO3- + OH- 
S2- + H3O+