[简答题]A one-month survey results indicate that smoking, alcohol and marijuana use increase among residents of Manhattan during the five to eight weeks after the terrorist attacks on the World Trade Center which took place on September 11,2001. Almost one-third of the nearly 1000 persons interviewed reported an increased use of alcohol, marijuana, or cigarettes following the September 11 attacks. About one-fourth of the respondents said they were drinking more alcohol in the weeks after September 11; about one tenth reported an increase in smoking, and 3.2% said they had increased their use of marijuana.
62)The investigators found survey participants by randomly dialing New York City phone numbers and screened potential respondents for Manhattan residents living in areas close to the World Trade Center. Interviews were conducted with 988 individuals between October 16 and November 15, 2001. Participants were asked about their cigarette smoking, alcohol drinking, and mari

[单项选择]Survey results indicate that smoking and alcohol and marijuana use increased among residents of Manhattan during the 5-8 weeks after the terrorist attacks on the World Trade Centre which took place on September 11,2001. Almost one third of the nearly 1,000 persons interviewed reported an increased use of alcohol, marijuana, or cigarettes following the September 11th attacks. The largest increase was in alcohol use. About one fourth of the respondents said they were drinking more alcohol in the weeks after September 11; about 10% re-ported an increase in smoking, and 3.2% said they had increased their use of marijuana.
The investigators found survey participants by randomly dialing New York City phone numbers and screened potential respondents for Manhattan residents living in areas close to the World Trade Centre. Interviews were conducted with 988 individuals between October 16 and November 15,2001. Participants were asked about their cigarette smoking, alcohol drinking, and mari
A. alcohol
B. marijuana
C. cigarettes
D. cocaine

[简答题]

A one-month survey results indicate that smoking, alcohol and marijuana use increase among residents of Manhattan during the five to eight weeks after the terrorist attacks on the World Trade Center which took place on September 11,2001. Almost one-third of the nearly 1 000 persons interviewed reported an increased use of alcohol, marijuana, or cigarettes following the September 11 attacks. About one-fourth of the respondents said they were drinking more alcohol in the weeks after September 11; about one tenth reported an in- crease in smoking, and 3.2% said they had increased their use of marijuana.
62)The investigators found survey Participants by randomly, dialing New York City phone numbers and screened Potential respondents for Manhattan residents living in areas close to the World Trade Center. Interviews were conducted with 988 individuals between October 16 and November 15,2001. Participants were asked about their cigarette smoking, alcohol drinking,