The program to control the entry of leelgal drugs into the country was a failure in 1987. If the program had been successful, the wholesale price of most illegal drugs would not have dropped substantially in 1987.
the argument in the passage depends on which of the following assumptions?
a. the supply of illegal drugs dropped substantially in 1987
b. the price paid for most illegal drugs by the average consumer did not drop substantially in 1987
c. domestic production of illegal drugs increased at a higher rate than did entry of such drugs into the country
d. the wholesale price of a few illegal drugs increased substantially in 1987
e. a drop in demand for most illegal drugs in 1987 was not the sole cause of the drop in their wholesale price
答案E。不明白。。。
1987年对于非法药物的限制入境努力失败了，如果这个计划成功那非法药物的价格不会下降那么多。这里面有一个推里：限制没有成功，非法药物的供给增多导致其价格下降。
E排除了需求下降使价格下降的可能
| 欢迎光临 ChaseDream (https://forum.chasedream.com/) | Powered by Discuz! X3.3 |