cross reacting antigen

例句：

1. 1. The patient's blood sample showed a cross-reacting antigen in the test.
   患者的血液样本在测试中显示出交叉反应抗原。
2. 2. The researcher discovered a new cross-reacting antigen that could be used to detect cancer cells.
   研究人员发现了一种新的交叉反应抗原，可以用来检测癌细胞。
3. 3.The study focused on the cross-reacting antigens between different species of plants.
   该研究关注不同植物物种之间的交叉反应抗原。