What does COVID-19 mean by "three questions and three questions"

According to relevant data, the "three checks and three questions" in COVID-19 refers to checking the body temperature, checking the health code or travel code, checking the vehicles with trucks, asking whether you have returned from abroad, asking whether you have been to or passed through medium-high risk areas recently, and asking whether you have been exposed to confirmed or suspected cases recently. COVID-19's three inspections refer to checking body temperature, checking health code or travel code, and checking vehicles with trucks. The third check refers to asking whether you have come back from abroad, whether you have been to or passed through middle and high risk areas recently, and whether you have been exposed to confirmed or suspected cases recently. So being together means checking body temperature, checking health code or travel code, checking trucks and vehicles, asking if you have come back from abroad, asking if you have been to or passed through high-risk areas recently, and asking if you have been exposed to confirmed or suspected cases recently.