A customer has an EMC Symmetrix DMX-4 installed. The disk subsystem is coming off lease. The customer is considering an IBM System Storage DS8800. What is a key advantage of the DS8800（）
A. The DS8800 has a higher disk RPM than the Symmetrix DMX-4
B. The DS8800 has higher capacity with more efficient footprint than the Symmetrix DMX-4
C. The DS8800 supports FlashCopy for internal array replication
D. The DS8800 supports external virtualizatio
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高炉煤气比焦炉煤气燃烧速度小，所以火焰也就比焦炉煤气小。
A. 正确
B. 错误
期货公司取得金融期货结算业务资格之日起6个月内，未取得期货交易所结算会员资格的，金融期货结算业务资格自动失效。（）
A. 正确
B. 错误
肠杆菌科细菌中一般情况下VP阳性菌，MR常为阴性，反之亦然。()
A. 正确
B. 错误
独脚圆桌在火灾中被烧后，朝向起火部位或火源方向倒塌。（）
A. 正确
B. 错误
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