封堵作业时，管径相同，压力高的管段比压力低的管段所需皮碗的唇部直径要（） 大。 小。 相同。 小1/2&Prime。
You are working on a database that must be functioning 24 hours a day， 7 days a week. The database isconfigured in ARCHIVELOG mode. Which two options do you have for performing user-managed backups（） You can perform consistent backups only.。 You can perform a complete database backup without shutting down the database instance.。 You can back up data files only when all data files have the same SCN recorded in the control file.。 You can back up only those data files whose headers are frozen by using ALTER TABLESPACE BEGINBACKUP or ALTER DATABASE BEGIN BACKUP command。
不锈钢球型折角塞门橡胶密封件自制造完成之日起至组装使用前的贮存期不超过（）。 1个月。 3个月。 6个月。 1年。
人们为什么有时反对为被告做精神异常无罪辨护？
You deploy a mobile messaging solution by using front-end and back-end servers that run Microsoft Exchange Server 2003 Service Pack 2. Company policy requires that all Microsoft Windows Mobilebased devices must support Microsoft Exchange ActiveSync communication that is Federal Information Processing Standard compliant. You need to deploy the Windows Mobilebased devices. What should you use？（） Microsoft Windows Mobile 5.0。 Microsoft Windows Mobile 2003 for Pocket PC。 Microsoft Windows Mobile 2003 Second Edition。 Microsoft Windows Mobile 5.0 with Microsoft Messaging and Security Feature Pack。
“个人全面发展”这一概念最早出现在（）
