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问题 单项选择题 B1型题

通过腹中线切开法给犬作子宫卵巢摘除术，以脐孔为上届向下切开（）

A.10～15cm

B.5～10cm

C.3～5cm

D.20～25cm

E.15～20cm

答案

参考答案：B

完形填空

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