62. The survey results suggest that the largest increase in substance use was

　　; A)alcohol B)marijuana C) cigarettes D) cocaine

　　63. The survey participants were randomly selected __

　　A)United States citizens

　　B)New York City citizens

　　C)Manhattan residents who live close to the World Trade Center

　　D)American citizens who witnessed the terrorist attack

　　84. The author is trying to reveal in this article that

　　A)use of substances may vary from time to time

　　B)abuse of certain substances is harmful for health

　　C) the attack of September 11th has left incurable harm to people's mental health

　　D)terrorist attack increase anxiety and sense of insecurity among residents

　　65. After September 11 in America, .

　　A) people who reported an increase in alcohol use were more likely to have [ri'SD

　　B) people who were living closer to the World Trade Center were most likely to increase cigarette smoking

　　C) displacement from home and involvement in rescue efforts were consistently　associated with increased substance use

　　D) symptoms of panic attack were unrelated with increased use of substances

　　66. It can be inferred that

　　A) demographic information such as gender, race and marital status was not collected

　　B) gender and race do not have much effect on the amount of substance abuse

　　C)age and marital status do not make any difference on substance abuse

　　D)income is a better predictor of substance abuse than age