答:液体芯片-飞行时间质谱技术利用磁珠俘获肿瘤患者与健康对照体液中低丰度特异蛋白或多肽,经飞行时间质谱测定和软件分析,建立由两者差异表达蛋白或多肽组成的质谱图模型,用于预测未知样品的归属。它的优点在于:(1)俘获的低丰度蛋白或多肽种类多,保证了系统的特异 A: The liquid chip-TOFMS technique uses magnetic beads to capture low-abundance specific proteins or peptides from tumor patients and healthy controls. The mass spectra and software analysis of time-of-flight mass spectrometry and software are used to establish a mass spectrum of differentially expressed proteins or peptides Model to predict the attribution of unknown samples. Its advantages are: (1) The abundance of low-abundance proteins or peptides captured ensures systematic specificity