食管3个狭窄距中切牙距离分别为()
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食管3个狭窄距中切牙距离分别为()
A.5cm,15cm,25cm
B.10cm,20cm,30cm
C.15cm,25cm,35cm
D.15cm,25cm,40cm
参考答案:
食管3个狭窄距中切牙距离分别为()
A.5cm,15cm,25cm
B.10cm,20cm,30cm
C.15cm,25cm,35cm
D.15cm,25cm,40cm
参考答案: