根据题意得:2x-1≠0
解得:x≠12
故答案是:x≠12.
—I have never been to the Great Wall before.
—_____[ ]
A. Me, too.
B. Yes, I have.
C. No, never.
D. Me, neither.
打开项目文件salary_p,将考生目录下的数据库salary_db添加到该项目中。