上题中，若所输血液的血型不合，输血后血液中何种成分会凝集成团，阻碍血液循环，造成严重后果()
A、红细胞________youhadbeenhere,wewouldn’thavehadsomuchtroublethen.
Thereisadeadlock(僵局)inthediscussionwhenneithersidegives________totheother.
“Thedignityofmovementofanicebergisduetoonlyone-eighthofitbeingabovewater.”This“iceberg”analogyaboutprosestylewasputforwardby().
Onecanfigureoutthemeaningof“airmail”tobe“mailbyair”byits______.
Childrenhaveanatural________abouttheworldaroundthem.
