车辆制动机按动力源于控制方法分为()机,电空制动机,手用制动机,真空制动机.
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A storage specialist is discussing the customer’s high availability plan and discovers that they areonly 80 kilometers (50 miles) from the intended site. They require 7 x 24 x 365 data availability in aUNIX environment with an RPO of two minutes. They have two DS5300 systems located at bothsites. Which of the following IBM storage functions best meets the customer’s businesscontinuance requirements?()
A. HACMP
B. Volume copy
C. Metro Mirror
D. Global Mirror
十八届四中全会通过的《中共中央关于全面推进依法治国若干重大问题的决定》提出,构建对维护群众利益具有重大作用的制度体系,包括建立健全以下哪些机制?()
A. 社会矛盾预警机制
B. 利益表达机制
C. 协商沟通机制
D. 救济救助机制
汽包汽水分离器的作用主要是用来分离气体和液体,达到净化蒸汽的作用。
A. 正确
B. 错误
一薄透镜前后两面光焦度分别为+6.00D;-1.25D,则该透镜的总光焦度为()。
A. +6.00D
B. -1.25D
C. +1.25D
D. +4.75D