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單項(xiàng)選擇題

食管下段癌，上縱膈淋巴結(jié)轉(zhuǎn)移率約為()

A.10%左右
B.30%
C.0
D.40%
E.20~30%

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單項(xiàng)選擇題

由上門齒至食管末端的長(zhǎng)度為()

A.20cm
B.30cm
C.20~30cm
D.25~40cm
E.40~45cm

單項(xiàng)選擇題

食管癌血行轉(zhuǎn)移最常見部位為()

A.腦轉(zhuǎn)移
B.骨轉(zhuǎn)移
C.肺與肝轉(zhuǎn)移
D.皮下轉(zhuǎn)移
E.肺與骨轉(zhuǎn)移

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