草坪病害发生的原因：
网络个人信息资料的使用行为按使用方式可分为（） 直接使用。 间接使用。 内部使用。 外部使用。 反馈使用。
An x445 can withstand up to two failed memory chips per memory bank. In addition， the customer requires protection for a third memory chip failure on that bank. Which EXA feature will provide this extra level of protection？（） Chipkill。 Hot Spare Memory。 Memory Mirroring。 Memory ProteXio。
View the Exhibit exhibit1 to examine the series of SQL commands. View the Exhibit exhibit2 to examine the plans available in the SQL plan baseline. The baseline in the first row of the Exhibit is created when OPTIMIZER_MODE was set to FIRST_ROWS. Which statement is true if the SQL query in exhibit1 is executed again when the valueof OPTIMIZER_MODE is set to FIRST_ROWS?（） The optimizer uses a new plan because none of the plans in the exhibit2 are fixed plans.。 The optimizer uses the plan in the second row of the exhibit2 because it is an accepted plan.。 The optimizer uses the plan in the first row of the exhibit2 because it is the latest generated plan.。 The optimizer uses the plan in the first row of the exhibit2 because OPTIMIZER_MODE was set to FIRST_ROW during its creation.。
女性，28岁。右下肢被火车压伤后4d，尿量24h小于100ml，伴有恶心、呕吐、嗜睡、昏迷、抽搐等症状。化验血肌酐460umol/L，尿素氮26mmol/L。患者的血液中哪项变化是不可能的（） 高钾血症。 高钠血症。 高磷血症。 高镁血症。 低钙血症。
A System x administrator is considering new storage subsystems. Which of the following is a benefit of SAS over Solid State? （）
