例句與造句

1. Since 1997, the Irish government has imposed systematic identity checks on air passengers coming from the United Kingdom and selective checks on sea passengers, and occasional checks on land crossings.
2. Since January 1, 1985, 19 machine-building enterprises were subject to an experiment : after the production was approved by the Technical Control Departments, a special commission created by Gosstandart performed additional selective checks.
3. It's difficult to find selective check in a sentence. 用selective check造句挺難的