多点相关定位系统的定时方式主要有()和()。
A. 同步定时;异步定时
B. 同步定时;分布式定
C. 中央定时;异步定时
D. 中央定时;分布式定时
话音信号的PCM编码每秒抽样()次,每个抽样值编码为8比特。
A. 1000
B. 2000
C. 4000
D. 8000
()与()并重是未来国家泛在智能电网发展的内在要求和方向。
A. 清洁发展
B. 坚强
C. 全球配置
D. 智能
Your company has client computers that run Windows XP Professional. You are planning to install Windows 7 Enterprise on the existing client computers. You need to design a user state migration strategy that minimizes network bandwidth and server use when user data is being migrated. What should you do?()
A. Use the Refresh Computer method and a hard-link migration store.
B. Use the Refresh Computer method and a compressed migration store.
C. Use the Replace Computer method and a hard-link migration store.
D. Use the Replace Computer method and a compressed migration store.