A.select max(score)fromt_score B.select min(score)fromt_score C.select avg(score)fromt_score D.select sum(score)fromt_score
A.create user tom@’localhost’identified by’123’ B.drop user tom@’localhost’ C.add user tom@’%’identified by’123456’ D.alter user tom@’localhost’identified by’123456’
A.JAVA環(huán)境 B.PYTHON環(huán)境 C.PEARL環(huán)境 D.以上都不是