11.   Mr. Decker said heroin addicts typically commit more burglaries than crack users because of the nature of their addiction.

12.   Perhaps the biggest surprise in the new image of HIV infections is the rapid spread of the virus among crack users.

13.   Race-specific issues now have shrunk back to racial profiling by police, affirmative action and laws that punish crack cocaine users more harshly than powder cocaine users.

14.   Some black residents say the town does have a cluster of crack cocaine users who buy drugs in larger cities like Amarillo or Plainview.

15.   The average age for crack users is going up, perhaps creating a less violent market for the drug.

16.   The number of crack users began falling not long after surveys began counting them.

17.   The researchers cautioned that many mothers of children who tested positive for cocaine did not report being crack cocaine users themselves.

n. + user >>共 433
computer 30.86%
drug 17.19%
internet 2.96%
business 2.83%
road 2.68%
wheelchair 1.64%
power 1.48%
heroin 1.39%
phone 1.35%
novice 1.20%
crack 0.54%
crack + n. >>共 160
cocaine 29.30%
addict 7.52%
troop 4.14%
dealer 3.92%
unit 3.92%
pipe 3.16%
team 2.94%
epidemic 2.94%
vial 2.29%
trade 1.85%
user 1.85%
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