来自陈维南的问题
【Johnsonthediscoveryamajorbreakthroughinmedicalscience.A.consideredto;asB.considered;toC.refferd;forD.refferdto;as】
Johnsonthediscoveryamajorbreakthroughinmedicalscience.
A.consideredto;asB.considered;toC.refferd;forD.refferdto;as

