Oracle使用哪两个SELECT语句从系统日期中提取年份并以“2022”格式显示？（CD） A SELECT TO_DATE(SYSDATE,'yyyy') FROM dual; B SELECT TRUNC(SYSDATE, 'YEAR') FROM dual; C SELECT TO_CHAR(SYSDATE,'yyyy') FROM dual; D SELECT EXTRACT(YEAR from SYSDATE) from dual; E SELECT SUBSTR(SYSDATE, 0, 3) FROM dual;