企业征信系统明细查询提供对企业征信明细数据的查询功能和信用报告查询功能,主要包括()。
A. 明细查询
B. 金融机构查询
C. 票据查询
D. 贷款卡查询
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企业的知识资源,在使用过程中,()出现边际报酬递减现象。
下列哪项不属于进化历程中出现过的古代鲸鱼()。
A. 白鲸
B. 原鲸
C. 走鲸
数字万用表使用完毕后关闭万用表,测量前,应先用交流、直流电压档,确定无电流后进行测量。
A. 正确
B. 错误
What two statements are true regarding the recommendations received from the SQL Access Advisor?()
A. It cannot generate recommendations that support multiple workload queries.
B. It can recommend partitioning on tables provided that the workloads have some predicates and joins on the columns of the NUMBER or DATE type.
C. It can recommend partitioning only on tables that have at least 10,000 rows.
D. It can recommend only B-tree indexes and not bitmap or function-based indexes.