Regardless of your stated preference, if you're ready to quit, quitting abruptly is more effective.
无论偏好如何，如果准备戒烟，当机立断是最有效的方法。
Whether that means it must therefore return to 39% in 2013 as now scheduled, Mr Obama’s stated preference, or whether it should be allowed to remain at 35% is unclear.
但是我们目前并不清楚，最高税率是会像奥巴马先生偏好的那样，按计划在2013年回归到39%，还是保持35%的水平不变。
CVM belongs to stated preference valuation method.
CVM属于陈述性偏好价值评估方法。
Whether that means it must therefore return to 39% in 2013 as now scheduled, Mr Obama's stated preference, or whether it should be allowed to remain at 35% is unclear.
但是我们目前并不清楚，最高税率是会像奥巴马先生偏好的那样，按计划在2013年回归到39%，还是保持35%的水平不变。
Based on utility theory, truck travelers choice models were studied through stated preference survey.
以效用理论为基础，通过意向调查研究了高速公路货车出行者出行选择模型。
Based on utility theory, truck travelers choice models were studied through stated preference survey.
以效用理论为基础，通过意向调查研究了高速公路货车出行者出行选择模型。
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