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哪些因素会导致轮胎异常磨损（或早期磨损）？

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池塘养鱼中什么叫浮头或泛池？出现浮头后如何解救？

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箱形梁的水平旁弯，在使用过程中会逐渐变小，甚至会出现由外弯变成内弯。

A. 正确
B. 错误

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女性，62岁，口腔溃烂疼痛4个月，全身红斑伴瘙痒1周。病程中无四肢肌肉疼痛和无力。发病前身体健康。体格检查：面、颈、躯干、四肢广泛分布大量大小不等的紫红色斑疹、斑丘疹，表面覆有灰白色鳞屑，三联征阴性，皮损以面颈部为著，未有水疱、大疱及糜烂。口唇、舌及两侧颊黏膜较多处大小不等的糜烂，口唇部分糜烂面表面结痂。系统检查无异常。入院1周后出现双侧眼球结膜充血和眼睑糜烂。如果盆腔B超发现存在盆腔肿瘤可能，应该进一步进行下列哪些检查（）

A. 肿瘤十二项
B. 盆腔CT
C. 皮肤直接免疫荧光检查
D. 盐裂皮肤直接免疫荧光检查
E. 以大鼠膀胱上皮为底物的间接免疫荧光检查
F. 外周血免疫印迹检查

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You are the administrator of a Windows Server 2003 computer named Testking1. Backups of the System State data of Testking1 occur each day by using the local Administrator account. A new requirement restricts you from running services by using the Administrator account. To meet the requirement, you create a new service account named BackupTestking1 to be used for backups. You want this account to have the minimum permissions necessary to perform backups. You need to grant the appropriate permissions to the BackupTestking1 account and to configure the backup job to use the BackupTestking1 account. What should you do?（）

Add the BackupTestking1 account to the Server Operators group. Modify the backup Scheduled Task to use the BackupTestking1 account.
B. Add the BackupTestking1 account to the Backup Operators group. Modify the backup Scheduled Task to use the BackupTesking1 account.
C. Add the BackupTestking1 account to the Server Operators group. Modify the Task Scheduler service to use the BackupTestking1 account.
D. Add the BackupTestking1 account to the Backup Operators group. Modify the Task Scheduler service to use the BackupTestking1 account.

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