题目内容

螺杆钻具通过定子和转子将高压液体的能量变成机械能。

A. 正确
B. 错误

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单套相量测量装置GOOSE采样值接口数量应不少于几个（）

A. 1
B. 2
C. 3
D. 4

某企业年销售额（全部赊销）为500000元，毛利率为20%，流动资产为100000元，流动负债为80000元，存货为40000元，现金5000元（一年按360天计算）。计算偿债能力三指标。

You administer a SQL Server 2008 instance. The instance is located on a four-processor, quad-core server. The server frequently experiences CPU pressure. The instance contains a very large mission-critical database that is used continuously. You need to ensure that online index rebuilds do not consume all available CPU cycles. Which configuration option should you use?（）

A. affinity mask
B. affinity I/O mask
C. max degree of parallelism
D. optimize for ad hoc workload

全塑市话电缆回路特性阻抗与（）无关。