人体内的99%的钙存在于骨骼中。（）
参考答案：对
— You all like your English teacher?
— Yeah, she devotes herself ____ to teaching and it earns her a good reputation. [ ]
A. originally
B. extremely
C. obviously
D. entirely
根据规定需要办理检疫审批的入境邮寄物，收件人应向入境口岸检验检疫机构申请办理检疫审批手续，经审批同意并经检疫合格后方准入境。（）
