清代是我国地方志的全盛时期,涌现出了一批著名学者,他们亲自开展修志实践,对方志学的理论进行研究和探讨,创立了系统的方志学理论。学者章学诚在这方面的成就最大,他提出了“六经皆史”的观点。()
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汽轮机冷态启动时,从冲动转子到定速,一般相对膨胀差出现负值。
A. 正确
B. 错误
Which line from the output of the show ip interface command indicates a layer 1 problem?()
A. Serial0/1 is up, line protocol is down
B. Serial0/1 is down, line protocol is down
C. Serial0/1 is up, line protocol is up
D. Serial0/1 is administratively down, line protocol is dow