跳跃项目成绩表现在运动员在腾空中克服（）和（）上。
Which of the following advisors within the Oracle advisory framework will analyze a single SQL statement and make recommendations for performance improvement?（） [" SQL Repair Advisor"," SQL Optimizer"," SQL Access Advisor"," SQL Tuning Advisor"]
投掷器械的远度主要决定于（）和（）以及器械的出手初速度，出手角度和出手高度。
跑的四个阶段是：（）、（）、（）、（）。
A system is experiencing packet routing problems，when the administrator runs ’netstat -nr’ the following default routes are displayed： default165.253.251.1UG51601304 en8-- default192.168.50.1UGH01590450 en4-- Assuming the first route is correct，how can the administrator remove the incorrect default route？（） ["route delete default 192.168.50.1","access smit with the route_remove shortcut","chdev -l inet0 -a delroute=net，-hopcount，0，，192.168.50.1","flush the routing table from the console and configuring the 165.253.251.1 route"]
田径比赛应分别任命：（）、（）、（）、（）和（）裁判长。
