室颤电除颤采用
A、非同步200J以上A
暂无解析
Iwastohavemadeaspeechif_____.
—Canyoutakethedayofftomorrow?
—Well,I‘allhavetoget()frommyboss.
At______,photographyisachemicalprocess,duringwhichalight-sensitivematerialisalteredwhenexposedtolight.
Hesetupinbusiness____hisownandwasverysuccessful.
AlthoughSPanish,heattendedthecourse.