selection bar垂直输出selectionn.选择；挑选；挑选出来的人或事selection system of natural regeneration择伐更新法Selection of scientific research subject科研选题Selection of micro-current surge relays微电流冲击继电器的选用selection and identification of bacterium细菌分离鉴定selection of enterprise' accounting policySelection of Large-screen Display System大屏幕信息显示系统的选型Selection of nutrient solution composition配方选择Selection of modern institutional economics现代制度经济学

1. We will sample certain papers as a check.
   我们要对这次考试调卷抽查。
2. A spot check showed that at least five percent of the oranges were contaminated.
   一项抽查显示那些柳橙至少有百分之五受到了污染。