Winning the reading contest was _____ great success for Jack.[ ]
A. a
B. the
C. an
D. /
答案:A
下列属传统心肌酶谱项目而现趋于淘汰的是()
A.CK-MB
B.LD1
C.CK
D.AST
E.cTn
肺动脉扩张引起瓣膜相对关闭不全所产生的杂音称为
A.Austin-Flint 杂音B.Graham-Steell杂音C.Gibson杂音D.Duroziez杂音E.Oliver 征