下列招标项目中,允许自然人投标的是()。 A.设计项目招标 。 B.监理项目招标 。 C.绿化工程项目招标 。 D.科研项目招标。
Yuri created a formula for a button. The code is supposed to set the value of an existing field called title. He used the following formula: title:= @propercase (title); after the foumula runs ,the title field is null. Why? () the value of one field cannot be set from the value in another field 。 the text string in the formula is set to null. Thus notes cannot validate the formula 。 when setting the value of a field , the formula must be in the field‟s input validation event 。 the formula does not specify that title is an existing field. Thus it is interpreted as a temporary variable&e。
下列反映资产质量的指标中,哪个指标是通信企业应特别关注的。() 流动比率。 速动比率。 固定资产周转率。 已获利息倍数。
L-O-R封堵三通中,卡环密封部分由紫铜垫和()组成。 丝堵。 卡环。 卡环槽。 塞柄。
You executed the following command: RMAN> RECOVER COPY OF DATAFILE '/u01/app/oracle/oradata/orcl/users01.dbf'; Which statement regarding the above command is correct?() The '/u01/app/oracle/oradata/orcl/users01.dbf' data file is recovered from the image copy。 The '/u01/app/oracle/oradata/orcl/users01.dbf' data file is recovered from the last incremental backup。 Image copies of the '/u01/app/oracle/oradata/orcl/users01.dbf' data file are updated with all changes up to incremental backup SCN. '/ u01/app/oracle/oradata/orcl/users01.dbf。 Image copies of the '/u01/app/oracle/oradata/orcl/users01.dbf' data file are recovered using the above command if data file recovery fail。
大一新生张某,头戴耳环、手臂纹身,开学第一天上课就迟到。其实,他很焦虑,很想在大学中表现得好一点。但是,教师对学生的迟到和怪异打扮表现出反感,课堂上对该生进行了严厉地批评;学生感到自尊心受伤,也以同样的态度回应教师。由此,教师认为这个学生比较叛逆、沾染了不良的习气,对该生持否定态度,无论该生如何用心做事、学习都得不到教师的肯定;该生逐渐放弃了努力表现与改进的想法,与社会上不三不四的人鬼混,沾染了更多的不良习气。该生出现的问题有()诱因。