A . 25mm
B . 30mm
C . 35mm
D . 40mm
E . 45mm
[单选题]成人咽鼓管全长约为()。A . 25mmB . 30mmC . 35mmD . 40mmE . 45mm
[单选题]成人的咽鼓管全长约为()。A.36mmB.38mmC.34mmD.35mmE.37mm
[单选题]成人的咽鼓管全长约为()。A.36mmB.38mmC.34mmD.35mmE.37mm
[单选题]成人咽鼓管全长为()A . 15mmB . 25mmC . 45mmD . 35mmE . 55mm
[单选题]成人咽鼓管全长为:()A . 15mmB . 25mmC . 35mmD . 45mmE . 55mm
[单选题]成人咽鼓管全长为()A .15mmB .25mmC .45mmD .35mmE .55mm