卷筒壁磨损至原壁厚的()时,卷筒应报废。
C
暂无解析
Besusceptibleto
WhichdirectorisgiventheopeningspeechattheAnnualGeneralMeeting?
Youdonotwanttosquandertimeandeffortonaposition______isnotagoodfit.
Theyalsorecognizethatstresscanresultinstress-relatedillnesses,suchashighbloodpressure,ulcers,andfatigue.
Asthenumberofparticipantshasincreasedfrom60to98,wewonderifwecanuseLectureHall'A'as'B'willbetoosmall.