You need to back up the existing data on a computer before you install a new application. You also need to ensure that you are able to recover individual user files that are replaced or deleted during the installation. What should you do?()
A. Create a System Restore point.
B. Perform an Automated System Recovery (ASR) backup and restore.
C. In the Backup and Restore Center window, click the Back up files button.
D. In the Backup and Restore Center window, click the Back up computer button.
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()分析技术主要需要油液颗粒()、形态、成分、类型、大小、分布和材料等数据信息。
《铁路旅客运输服务质量标准》规定,运行途中洗脸间、厕所、通过台、连接处保持()。
A. 清洁
B. 整洁
C. 干燥
D. 无杂物
患者身体沉重而疼痛,肢体浮肿,恶寒,无汗,口不渴,舌苔白,脉弦紧。治疗应首选()
A. 麻黄、桂枝、杏仁、甘草
B. 桂枝、白芍、生姜、大枣、甘草
C. 麻黄、生石膏、生姜、大枣、甘草
D. 麻黄、桂枝、细辛、干姜、半夏、白芍、甘草、五味子
E. 以上都不是
速率匹配后比特流数目可以是一个偶数,也可以是一个奇数,但要确保能分配成两个子帧。
A. 正确
B. 错误