皮皮学，免费搜题
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【单选题】
计算行李、包裹运价的起码里程为：行李（）km。A.
20
B.
50
C.
100
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参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】关于男性尿道的叙述，正确的是
A.
专司排尿功能
B.
起于输尿管口，止于尿道外口
C.
全长8～12cm
D.
有3个狭窄、2个扩大、2个弯曲
E.
可分为前列腺部、膜部和海绵体部
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