The program to control the entry of illegal 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?
The program to control the entry of illegal 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. 80. 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 the 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.
以下是引用似水无痕在2005-11-26 0:08:00的发言: 有一个问题,如果按E的说法是不是应该改成not the cause of 而不是not the sole cause of
不能,改了就不对了。
把E取非,A drop in demand for most illegal drugs in 1987 was the sole cause of the drop in their wholesale price,就说a drop in demand是唯一降价的原因,这样就完全削弱了题目的结论:是由于program的failure导致的降价。