A. un- B. an- C. um- D. pre-
A. heart B. blood vessel C. blood D. plasma
A. suture B. ostomy C. surgical repair D. anastomosis
A. urinary tract B. ureter C. urine D. urination
A. instrument of measuring B. instrument of recording C. instrument of checking D. instrument of viewing
微信支付 
支付宝支付