人类可能因食用感染狂牛症的牛只脑脊随组织而罹病。
B. Humans can contract BSE by eating brain or spinal tissues from infected cattle.
泡桐在罹丛枝病之后，除节间距缩短、叶片缩小等外部变化外，其组织结构也发生变化。
After Paulownia infected by witches broom, the distance between its nodes became, shorter and the size of the leaves became smaller.
泡桐在罹丛枝病之后，除节间距缩短、叶片缩小等外部变化外，其组织结构也发生变化。
After Paulownia infected by witches broom, the distance between its nodes became, shorter and the size of the leaves became smaller.
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