A.及時發(fā)現(xiàn)、合理預(yù)防 B.及時糾正、合理預(yù)防 C.合理預(yù)防、認(rèn)真整改 D.及時糾正、認(rèn)真整改
A.2.5mm B.2mm C.5mm D.3mm
A.1~2mm B.2~3mm C.1~3mm D.3~5mm