题目内容

中心静脉压低,动脉压正常()

A. 心功能不全
B. 血容量不足
C. 心功能不全,外周阻力下降
D. 体循环阻力与肺循环阻力均增加
E. 血容量轻度不足

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战国末年的()是法家思想的集大成者,他综合了早期法家商鞅的“法”、申不害的“术”、慎道的“势”,建立了自己的法家理论体系。

In the instance of the PROD database, the checkpoint (CKPT) process runs after every minute. A database user updates the rows of the ORDERS table. Because of the configuration, the CKPT process gets initiated before the user commits the transaction. What would happen to the modified blocks when the CKPT process is started?()

A. The modified blocks would be written to the data files.
B. The modified blocks would be written to the temp files.
C. The modified blocks would be written to the control file.
D. The modified blocks would be written to the redo log files.
E. The modified blocks would be written to the archived redo log files.
F. The modified blocks would be retained in the database buffer cache.

电动机额定功率的单位是()。

A. kvA
B. kw
C. kvar

何谓强度?强度有哪几种指标?

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