下列何项属于非获得性容血性贫血（） 自身免疫性溶血性贫血。 阵发性睡眠性血红蛋白尿。 微血管病性溶血性贫血。 G-6-PD缺陷。
Which of the following commands should be used to clear all entries from the error log? （） errpt -d S 0 。 errclear 0 。 errpt -d H 0 。 errclear -d H 0&e。
生态足迹
客车用压力表与标准压力表校对时，压力差不得大于（）。 5kPa。 10kPa。 15kPa。 20kPa。
Companycom is purchasing a 64-way p5 595. They have determined the location for the server is in a datacenter which does not have a raised floor. Which of the following would best meet the server requirements?（） The server must be installed into a location with a raised floor for optimum system cooling and cable management.。 The server should be purchased as a p5 590 and then upgraded to a p5 595. This will eliminate the need for a raised floor environment.。 The server should be purchased as 32-way p5 595 and then upgraded to a 64-way. This will eliminate the need for a raised floor environment.。 The server can be installed into a location without a raised floor if an RPQ is obtained. It is a strong IBM recommendation for a raised floor, not a requirement.。
认为如果两种情境中有产生式的交叉或重叠，则可以产生迁移的是（）
