抗生素残留对人造成的主要危害有哪些？
病儿，15岁，主诉乏力，尿酱油色，贫血，尿联苯胺试验阳性，下列何项资料最不重要（） 用药史。 外周血片检查。 尿沉渣检查。 骨髓象检查。
For which two situations would you use functionality provided by the Resource Manager?（） setting idle timeout limits on resource plans。 saving storage space by using compressed backup sets。 creating jobs that will run automatically at a scheduled time。 assigning priorities to jobs to manage access to system resources。 creating alerts to perform notification when tablespaces are low on available space resource。
F8型分配阀在一次缓解位时，“转换盖板”上的箭头应（）。 向上。 向下。 向左。 向右。
Which of the following statements is used to revoke all DML privileges on table EMPLOYEE from user TOM?（） REVOKE ALL PRIVILEGES FROM USER tom。 REVOKE ALL ON EMPLOYEE FROM USER tom。 REVOKE EXECUTE ON EMPLOYEE FROM USER tom。 REVOKE PRIVILEGES ON EMPLOYEE FROM USER tom。
A system without a monitor has crashed. The administrator would like to see the console output to determine a possible cause of the crash and ensure that there were no problems on reboot. Which command would be used？（）
