A . 2∶4
B . 1∶3
C . 1∶2
D . 2∶5
E . 2∶3
[单选题]眼底正常动静脉管径之比为A.2∶4B.1∶3C.1∶2D.2∶5E.2∶3
[单选题]眼底正常动静脉管径之比为A.2∶4B.1∶3C.1∶2D.2∶5E.2∶3
[单选题]眼底正常动静脉管径之比为( )。A.2:4B.1:3C.1:2D.2:5E.2:3
[单选题,A2型题,A1/A2型题] 正常时,眼底动脉与静脉管径之比约为:()A . 2:3B . 1:3C . 2:4D . 1:2.5E . 2:2.5
[单选题]正常时,眼底动脉与静脉管径之比约为()。A . 2:3B . 1:3C . 2:4D . 1:2.5E . 2:2.5
[单选题,A2型题,A1/A2型题] 正常时,眼底动脉与静脉管径之比约为()A . 2:3B . 1:3C . 2:4D . 1:2.5E . 2:2.5
[单选题]正常时,眼底动脉与静脉管径之比约为:A.2:3B.1:3C.2:4D.1:2.5E.2:2.5
[单选题]正常时,眼底动脉与静脉管径之比约为:A.2:3B.1:3C.2:4D.1:2.5E.2:2.5
[单选题]正常时,眼底动脉与静脉管径之比约为:A.2:3B.1:3C.2:4D.1:2.5E.2:2.5
[单选题]正常时,眼底动脉与静脉管径之比约为:A.2:3B.1:3C.2:4D.1:2.5E.2:2.5