小学阶段要注重“双基”的培养,其中,“双基”是指()和()
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X射线机中的焦点尺寸,应尽可能大,这样发射的X射线能量大,同时也可防止靶过份受热。
A. 正确
B. 错误
You can control instance recover performance by setting parameters to define targets for()
A. The size of the redo buffer in SG
B. The instance that will perform recovery in Real Application Cluster database.
C. The number of blocks to be read during instance recovery, or the time needed to complete instance recovery.
D. The number of passes through the redo logs made by the recovery process to identify blocks needing recovery.
黑白电视机图像中频放大器,若采用三级RC宽带放大电路,则第四级中放常采用()放大器
A. 单调谐
B. 参差调谐
C. 双调谐
D. 非调谐
全面检查中,在售楼盘清洁主管或独立班长对售楼部/样板房巡查的执行频率要求是()。
A. 1周1次
B. 3天1次
C. 2天1次
D. 1日1次