Which is a restriction on a list partitioned table？（） ["You cannot create global range partitioned indexes on the table. ","The optimizer will not execute partition wise joins on the table’s partitions. ","You must include at least one element in the value list of each partition of the table, even if that element is the keyword NULL. ","Partition pruning will not occur during query optimizer if a range of values is included in the query predicate."]
（）是指在某一领域中，针对某些热点问题二举办的学术会议。规模较小，但议题较为重要。 ["团体固定会","代表会议","专题会议","研讨会"]
投标有效期应从（）起算。 ["施工合同签订之日","发布中标通知之日","工程开工之日","提交投标文件的截止之日"]
平面力偶系合成的结果为（） ["一个力偶","一个力","一个力和一个力偶","一个等于零的力"]
路基处理的方法中，适用于黏性土、冲填土、粉砂、细砂等土层的是（）。 ["排水固结法","振密挤密法","换土垫层法","置换及拌入法"]
给下列汉字注音并组词。允
