建筑机械的单机核算中,当月收入是指该机当月实际完成的工作量或创造的施工经营产值,作好统计是单机核算最关键的问题。
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当一个一宅一户的住宅因迁出而变成空宅时,如非农业经营户,应及时换宅。
A. 正确
B. 错误
滞销品淘汰的目的之一在于有效利用销售场所空间,提高商品周转率和经营效益。
A. 正确
B. 错误
将物体放在斜面上,物体的重力可()为物体沿斜面的下滑力和垂直于斜面的正压力。
A. 分解
B. 假定
You are a DBA of your company. You created a database named SALES on an Oracle 10g instance. You have defined an index named INDEX1 on the database table named INVENTORY. Users are complaining that queries accessing the INVENTORY table are running slow. Upon investigation you determine that the tablespace where the index is located is experiencing high I/O and you decide to relocate the index to another tablespace. Which of these will be the best way to accomplish this objective?()
A. Rebuild the index.
B. Coalesce the index.
C. Drop and re-create the index in the new tablespace.
D. Relocate the index using the ALTER INDE..MOVE statement.