教师在精神环境的创设方面尤其注意：（）
根据对患者人身造成的损害程度，医疗事故分为______
Tounderstandthesentence,youshouldanalyzeitsparts________.
TheaveragelifeexpectancyoftheRedIndiansis________.
Weareallconcerned_______hersafety.
In“SongofMyself”,Whitmanwritesthat________.
