X字开头的单词或词组
xylenol carboxylic acidx-linkedX-ray absorptionxanthoproteicXMS memory lockedxanthoproteic testxenon monohalidexiphodymusxylotherapyX-ray fluorescence analysisxanthoproteinxanthydrol reactionxylene monosulfonic acidxylidenesX-ray luminescencexylene tetrachloridexylose clearance testxylylchloridexanthocystinexanthomatous cirrhosisxpmxanthine testxenon tetrafluoridexenolithsxenoplastic transplantationxerosis epithelialis corneaexylylene dichloridesxylylene bromidexerosis infantilisxyloxylose isomerasexanthinoxidasexanthodontxenicxylose tolerance testxanthinol niacinatexylosic acidxylosuriaxanthoplastyxanthosine monophosphatexyloascorbic acidxenon flash lamp
