查询tb_student表中学生姓名第2个字为“明”的记录,正确的是( )
A. SELECT * FROM tb_student WHERE Sname LIKE ‘_明%’
B. SELECT * FROM tb_student WHERE NOT Sname LIKE ‘明%’;
C. SELECT * FROM tb_student WHERE NOT Sname LIKE ‘_明’;
D. SELECT * FROM tb_student WHERE Sname LIKE ‘明_%’;