谢谢！准确点是直肠和结肠（今天才学的）

来源: lawattaction 于 2019-01-19 16:57:59 [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.