[填空题]
The Bush Administration appears determined to continue the war
on drugs that has been actively {{U}} (47) {{/U}} by all US governments
since the Nixon Administration.
Defenders of the war on drugs
often throw in an economic {{U}} (48) {{/U}}. It has been {{U}} (49)
{{/U}} because it curtails (削减) use by raising street prices. It does this
because suppliers have to be compensated for the risk of imprisonment and other
punishments. It may be true that high prices have {{U}} (50) {{/U}} the
demand for drugs, but the fact remains that most illegal drugs remain popular
and {{U}} (51) {{/U}}, regardless of price. More important, any
{{U}} (52) {{/U}} in the number of addicts and other users has come with
an enormous price label. The US alone spends almost $ 40 billion annually waging
the drug war, and other countries also spend big sums.
The war
is fought by seizing and destroying drugs and by apprehending and imprisoning
suppliers. A