外电网采集机与站机以()网络线相联,供电由监测系统提供。
A. CAN
B. RS232
C. RS422
D. RS485
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混凝土搅拌站规定描述错误的是()。
A. 搅拌机应搭设能防风、防雨的防护棚
B. 搅拌机应搭设能防晒、防砸的防护棚
C. 搅拌机在出料口不得设置安全限位挡墙
D. 搅拌机上料斗升起过程中,禁止在斗下敲击斗身
个体生长和发育中非常繁忙、最引人注目的阶段是()。
A medium-sized company with 500 employees has a rapidly growing storage infrastructure with clustered mail, database, and file and print core business applications running on six servers. Using current direct attached SCSI storage pools to each server leads to inefficient utilization of storage space.They also have a backup device attached to each server. They want to consolidate their storage and backup infrastructure into a scalable, high availability and high performance solution. The customer’s top priorities are performance, cost, and availability. Which of the following backup solutions best satisfies the customer requirements?()
A DS4000 SAN with flash copy enabled for volume mirroring
B. An iSCSI solution with dedicated backup server with SCSI attached tape library
C. A NAS solution with SCSI direct attached tape library with dedicated backup network
D. A DS4000 SAN with fibre channel attached tape library solution with dedicated backup zone
法无明文不为罪的准则及其暗含的种种要求也产生于一个()的观念中。
A. 经济体系
B. 法律体系
C. 政治体系