题目内容

A customer has two locations located 7 kilometers apart. The production site has a Cisco 9509chassis with 48 Fibre Channel ports activated， and the disaster recovery site has a Cisco 9509chassis with 48 Ethernet ports activated. Which of the following products will be used to get thedata from one location to the other？（）

A. IBM SAN40-B4
B. Cisco MDS 9222i
Cisco MDS 9148
D. IBM SAN32B-E4 with encryptio

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How should read， write and execute permissions for ‘group’ and ‘other’ be granted to all files and directories within the /app filesystem？（）

A. chmod -R 677 /app
B. chmod -R 664 /app
C. chmod -r 677 /app
D. chmod -r 664 /a

包价旅游

血瘀的病机，主要是指（）

A. 血液不足或濡养功能减退
B. 血液循行迟缓或不畅或瘀血停滞
C. 血分有热，循行加速或迫血妄行
D. 气血失和不荣经脉
E. 血随气逆，咯血或衄血

资本主义空间的功能与主要矛盾是什么？