asked 115k views
2 votes
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

asked
User Mansur
by
7.5k points

1 Answer

6 votes
The answer to this question is D
answered
User Vipin Gupta
by
8.3k points
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