阅读理解
Doyouknowbloodtypes?
Specialcaremustbetakeninselectingnewbloodforabadlyinjuredperson,whowouldbekilledbythetransfusionifthebloodistoodifferentfromhisown.
Therearefourbasictypesofblood:A,B,AB,andO.Bloodtype,likehairandheight,comesfromparents.Basically,AandBcannotbemixed.AorBcannotreceiveAB,butAB,sometimescalledtheuniversalrecipient,mayreceiveAorBOtype,oftencalledtheuniversaldonor,giveshisbloodtoanyothergroup.Patientsusuallyreceivenothingbutsaltorplasma(血浆)untiltheirbloodcanbematchedasexactlyaspossibleinthebloodbankofahospital.Thereisarelationshipbetweenyourbloodtypeandyournationality.AmongEuropeans,about42percenthavetypeAwhile45percenthavetypeO.Thefewest,isthetypeAB.
1.Whichofthefollowingshowsthecorrectrelationshipinbloodtransfusion?
(“←”meansgivingbloodto)
[]
A.B.C.D.2.FromthispassagewecanknowthatamongEuropeans________13percenthavetypeB.
[]
A.aboutB.nomorethanC.lessthanD.atmost3.Thetitleofthispassageshouldbe________.
[]
A.ImportanceofBloodTransfusion
B.ChoiceofBloodTransfusion
C.DifferentTypesofBlood
D.HumanBloodTypes