You need to design a Windows Server Update Services （WSUS） infrastructure that meets the following requirements： èThe updates must be distributed from a central location. èAll computers must continue to receive updates in the event that a server fails. What should you include in your design？（）
A. Configure two WSUS servers in a Microsoft SQL Server 2008 failover cluster. Configure each WSUS server to use a local database.
B. Configure a single WSUS server to use multiple downstream servers. Configure each WSUS server touse a RAID 1 mirror and a local database.
Configure a single WSUS server to use multiple downstream servers. Configure each WSUS server to use a RAID 5 array and a local database.
D. Configure a Microsoft SQL Server 2008 failover cluster. Configure two WSUS servers in a Network Load Balancing cluster. Configure WSUS to use the remote SQL Server 2008 database instance.
男性，65岁，双下肢轻度水肿2个月，血压正常，尿常规蛋白阳性、尿红细胞0~2个/HP，24小时尿蛋白定量4.8g，血桨白蛋白25g/L，血肌酐78μmol/L。最可能的病理类型是（）
A. 微小病变肾病
B. 系膜增生性IgA肾病
C. 膜性肾病
D. 毛细血管内增生性肾小球肾炎
E. 系膜毛细血管性肾小球肾炎
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