在SQL SRVER中，查询STUDENT1表中GJ大于等于300的男生，则SQL语句应为______ A: SELECT * FROM STUDENT1 WHERE CJ＞300 AND XB="男" B: SELECT * FROM STUDENT1 WHERE CJ＞=300 C: SELECT * FROM STUDENT1 WHERE CJ＞=300 AND XB="男" D: 以上都不是