以下哪个产品的机械臂上带有冗余的双磁带抓取器，每个抓取器均可以访问到磁带库中的所有槽位？（） ["IBM TS3310","IBM TS3500","SUN SL8500","Quantum Scalar 10K"]
Krstin has created a page in the videos application .which one of the following statements about pages is not true ?（） ["pages are design elements","Pages can be full-text indexed ","pages can be referenced by outlines or frames ","pages can include text,graphics ,applets,and link"]
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。该生出现的问题属于（）。 ["自我意识方面的问题","学习能力问题","适应问题","人际交往问题"]
主题营销有哪些类型？
Which of the following can be used to ensure that once a row has been inserted in table TABLEX, the column MAINID in that row cannot be updated?（） ["Define the column MAINID as NOT UPDATABLE","Define the column MAINID as a PRIMARY KEY","Define the column MAINID as a FOREIGN KEY","Define an UPDATE trigger on table TABLEX"]
在演示文稿中"格式"工具栏上没有的对齐方式（）
