http://www.amazon.com/3M-Littmann-Lightweight-Stethoscope-2451/dp/B00AZAMQ2U/ref=sr_1_1?s=hpc&ie=UTF8&qid=1395485960&sr=1-1
http://www.amazon.com/3M-Littmann-Classic-Stethoscope-2209/dp/B000F4UOWK/ref=br_lf_m_1001007411_1_2_ttl?ie=UTF8&s=industrial&pf_rd_p=1480648282&pf_rd_s=center-2&pf_rd_t=1401&pf_rd_i=1001007411&pf_rd_m=ATVPDKIKX0DER&pf_rd_r=1WJTJFJA376ZTBS1PS6C
这东西GN肯代不?到手几钱?
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这是听诊器吗!。。。gn要哪个阿。。第二个是546加邮费!