For 11 of the 27 energy drinks，the ABT did find the presence of alcohol if the test was given within one minute after the drink was taken.However，alcohol could not be discovered for any of the drinks if the test was given 15 minutes after the drink was consumed.This shows that when the test is taken plays an important role in the test result.The sooner the test is conducted after the consumption of these drinks，the more likely a positive alcohol reading will be obtained.

　　1．What is the legal alcohol level for a 20­year­old driver in the US?

　　A．0.000%.B．0.005%.

　　C．0.080%.D．0.096%.

　　．What is the purpose of the Missouri experiment?

　　A．To introduce a new method of calculating blood alcohol levels.

　　B．To discover the relation between energy drinks and ABT test results.

　　C．To warn people of the dangers of drinking energy drinks.

　　D．To change the current legal alcohol limit for drivers in the United States.

　　3．The underlined word “subjects” in Paragraph 2 refers to________.

　　A．the things that are being discussed

　　B．areas of knowledge studied in school

　　C．the participants in an experiment

　　D．the people who belong to a country

　　．Which of the following affects the ABT test result most for energy drink consumers?

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