充分利用设备和人力资源,避免加班加点,实现安全生产和文明生产,这是()的好处。
A. 连续性
B. 适应性
C. 均衡性
D. 平行性
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主、再热蒸汽分别进入高、中压缸,因此主、再热汽体温度只要不超过规程允许范围即可。
A. 正确
B. 错误
根瘤具有固()能力。
A. 氮
B. 磷
C. 钾
D. 钙
Cisco Unified Communications 500 Series for Small Business, a critical part of the Cisco Smart Business Communications System, is a unified communications solution for small businesses that provides voice, data, voicemail. Which three features does the Cisco UC520 support?()
A. distributed routing
B. Cisco Unity Express
C. security, firewall and VPN
D. analog device
DKZ5车型用于车辆之间的电气连接的电气连接器有哪几种?他们的作用是什么