题目内容

离心式压缩机止推轴承间隙偏小的危害有()。

A. 振动加剧
B. 止推轴承温度升高
C. 润滑油压升高
D. 流量下降

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Which two installations must be completed to allow third-party software to interact with the Cisco Unified CallManager Express system through TAPI Lite?()

A. the files in the Cisco IOS TSP file on all Windows PCs on the LAN
B. both the Cisco IOS TSP and TAPI Lite files on all Windows PCs on the LAN
C. the Cisco TAPI Lite files on the same Windows PC where the software is installed
D. the files in the Cisco IOS TSP file on the same Windows PC where the software is installed
E. the Cisco IOS TSP on the same Windows PC where the software is installed and on all remote teleworker PC

叉车基准满载状态以10km/h车速行驶时,制动距离应不大于()

A. 6米
B. 3米
C. 1米

简述道路纵断面设计原则。

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