HSDPA网络支持高速下行链路共享信道(HS-DSCH),一般来说主要用于承载PS域分组业务。
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混床再生时,为了更好的混脂,混脂前,应该把混床内的水降至树脂层表面上()mm。
去应力退火温度一般在A1点以下达(500~650℃),故退火过程中不发生组织转变。()
A. 正确
B. 错误
患者女,25岁。经检查全口无龋齿,如果对她推荐龋病预防措施,不合适的措施是()
A. 使用氟化物
B. 营养摄取计划
C. 口腔健康教育
D. 定期口腔健康检查
E. 预防性充填
Which is the correct description of a pinned buffer in the database buffer cache()
A. The buffer is currently being accessed.
B. The buffer is empty and has not been used.
C. The contents of the buffer have changed and must be flushed to the disk by the DBWn process.
D. The buffer is a candidate for immediate aging out and its contents are synchronized with the block contents on the disk.