Because different tissues of same plant species differ in component composition, RNA extraction methods have different nodi.
同种植物不同器官的组织由于组成分的差异，提取RNA的方法也存在不同的难点。
The preoperative diagnosis of B ultrasound and nuclide scan in 832 cases with nodi of thyroid were reviewed and compared them with their postoperative pathologic results.
对832例甲状腺结节患者的术前B超及核素扫描诊断进行了分析，并与他们术后病理结果进行对照。
The preoperative diagnosis of B ultrasound and nuclide scan in 832 cases with nodi of thyroid were reviewed and compared them with their postoperative pathologic results.
对832例甲状腺结节患者的术前B超及核素扫描诊断进行了分析，并与他们术后病理结果进行对照。
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