cailynmuglach cailynmuglach
  • 08-11-2018
  • Health
contestada

12. Morphine and codeine are the chief mind-affecting chemicals in the pain-relieving drug __________.
A. heroin

B. opium

C. methadone

D. All of the above

Respuesta :

kayla1441 kayla1441
  • 09-11-2018
The answer to this question is D
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