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英语听力填词
1)The nicotine gum and patches are often used by millions of smokers to help kick their habit.But they have no lasting benefit and may backfire in some cases,according to the most rigorous long-term study to date of so-called nicotine replacement therapy.
1)The nicotine gum and patches are often used by millions of smokers to help kick their habit.But they have no lasting benefit and may backfire in some cases,according to the most rigorous long-term study to date of so-called nicotine replacement therapy.
