多项选择题

某网站登录验证逻辑:从数据库查询对应用户名和密码,存在返回值即验证通过。以下数据库SQL注入语句符合登录成功逻辑且一定成功的是:()

A.SELECT *FROM user WHERE username =’1’OR ’1’=’1’AND password =’’
B.SELECT *FROM user WHERE username =’1’OR ’1’=’1’#AND password =’’
C.SELECT *FROM user WHERE username =’1’OR ’1’=’1’AND password =’1’OR ’1’=’1’
D.SELECT *FROM user WHERE username =’1’AND password =’’OR ’1’=’1’
E.SELECT *FROM user WHERE username =’1’AND password =’1’#

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