Xavi哈维；西班牙足球运动员；司职中场XA=Auxiliary Amplifier 辅助放大器xanthan-degrading bacteria黄原胶降解菌xanthosine phosphate aminase黄(嘌呤核)苷磷酸氨基酶Xanthium sibiricum poisoning苍耳中毒Xanthoceras sorbifolia Bunge文冠果xanthofibroma thecocellulare[医] 黄体瘤Xanthium Mongolicurn.Kitag东北苍耳子xanthoerythrodermia perstans小斑块状类牛皮癣Xanthocephalus xanthocephalusn.黄头黑鹂(拟黄鹂科)xamine targets by random test抽查抛靶xanthosine monophosphate acid黄苷酸