甘青汉语方言中的选择问句“A吗B”颇有特点,它既和“A还是B”这种以连词为句法标志的汉语通常选择问句存在明显的差异,又和“A吗,B吗”这种以语气词为句法标志的藏缅语式的选择问句有所不同。本文根据有关的语言和历史事实,认为这种选择问句是汉语和藏缅语选择问句混合的结果。 The question of “A? B ” in the choice of Chinese dialects of Ganqing is quite distinctive. It has both obvious discrepancies with “A” or “B”, which are syntactic signs of conjunctions. “A, B? ” This kind of choice of Tibetan-Burmese questions with syntactic signs is different. Based on the relevant linguistic and historical facts, this paper argues that this question of choice is the result of a mixture of Chinese and Tibetan-Burmese choice questions.