本文主要从语用价值的角度 ,考察了现代汉语列项选择问“是A还是B”中的两种重要类型的选肢位次问题。在探疑列项选择问中 ,A、B选择肢的位次和A、B成立的可能性大小等因素存在着极为密切的联系 ;在反诘列项选择问中 ,A、B选择肢的位次又和A、B的真假等因素存在着极为密切的联系。有时候 ,列项选择问的选肢位次是强制性的 ,不受语用价值的制约 In this paper, from the perspective of pragmatic value, this paper examines the electoral order problems of two important types of “A or B” in modern Chinese. In the questioning of the choice of questioning, A, B choice of limbs and A, B the possibility of the size of the existence of such factors as there is a very close relationship; in the alternative question asked, A, B select limb bit Time and A, B true and false and other factors there is a very close connection. Occasionally, the number of alternate limbs asked to be asked is not mandatory for pragmatic value