Theadvertisementforthesecurityguardpositionsaysthatapplicantsmustbeabletoremain__________forsixhoursstraight.
A.alert B.observable C.discovered D.obvious正确答案A
Theadvertisementforthesecurityguardpositionsaysthatapplicantsmustbeabletoremain__________forsixhoursstraight.
A.alert B.observable C.discovered D.obvious正确答案A