Formerly,intheUnitedStates,manynursesworkedasprivatedutynursesratherthaninhospitals.
A、PreviouslyEyespots,themostrudimentaryeyes,arefoundinprotozoan原生动物flagellates鞭毛虫,flatworms扁形虫,andsegmentedworms片段蠕虫.
AlthoughtheCarbon14methodofdatingoldobjectsisnotfoolproof,itisthebestmethodavailableatpresent
Formerly,intheUnitedStates,manynursesworkedasprivatedutynursesratherthaninhospitals.
HowmanypeopleareawarethatadancerwiththeNewYorkCityBallettypicallywearsoutaminimumoftwohundredpairsoftoeshoesperyear?
Foodmustbemoistinordertohaveataste.
