单项选择题

Questions 1 to 5 are based on an interview. At the end of the interview you will be given 10 seconds to answer each of the following five questions. Now listen to the interview. Dieting is not an effective way to lose weight unless ______.

A．it is accompanied by exercising
B．you drink nothing but skim milk
C．you avoid eating fatty meat
D．you take more vitamins when exercising

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单项选择题

Questions 1 to 5 are based on an interview. At the end of the interview you will be given 10 seconds to answer each of the following five questions. Now listen to the interview. Dieting is not an effective way to lose weight unless ______. 您的浏览器不支持 audio 元素。