9個月小兒,母乳喂養,一直未加輔食。近1個月面色蒼白,食欲低下,經檢查診斷為缺鐵性貧血,擬用鐵劑治療,護士指導患兒家長正確的口服鐵劑的最佳時間是()
Aftermonthsofvoyage,Columbusarrivedin______laterprovedtobeanewcontinent.
Hewasvery_____togo,buthehadnochoice.
_____alltherepresentativesstillnotthere,themeetingwaspostponedforseveralhours.
In1900,theenergyderivedfromburningpetroleumwasonlyfourpercent______ofcoal.