23 C assert a direct line between violent media and aggressive behavior.
24 D their definition of violence
25 A More studies should be conducted before conclusinons are drawn.
26 A A quarter of Americans can’t afford their prescription drubs.
27 D exercising price control on brand-name drugs.
28 B High prices are essential to funding research on new drugs.
29 C To allow the vast majority to enjoy its benefits. B
30 C Reducing supplies to uncooperative Canadian pharmacies.
31 A offering senior citizens discounts has become routine commercial practice
32 C The elderly,being financially underprivileged,need human help from society.
33 B intensify conflicts between the young and the old
34 C It benefits the old at the expense of the young.
35 D Senior citizen discounts may well be a type of age
36 A crime against humanity
37 C deep-rooted socio-economic inequality
38 B The blacks are not compensated for their unpaid labor
39 D has been accumulated from generations of slavery