问题
选择题
Is this a computer?[ ]
A. Yes, it is.
B. No, it is.
C. Yes, that is.
D. Yes, it's.
答案
答案：A
搜题请搜索小程序“爱下问搜题”
Is this a computer?[ ]
A. Yes, it is.
B. No, it is.
C. Yes, that is.
D. Yes, it's.
答案：A
,上述离子方程式可能的配平系数有多组。请回答：