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单克隆抗体最重要的特点是() ["高亲和力","高均一性","高特异性","高效价","生物活性单一"] 甲状腺未分化癌的最佳治疗方案是() ["手术+甲状腺干制剂","手术+外放射治疗","手术+131<\/sup>Ⅰ同位素治疗","手术","手术+化疗"] MHc-Ⅰ类分子主要分布于() ["红细胞","白细胞","淋巴细胞","巨噬细胞","有核细胞"] 血清IgG增高的疾病为() ["轻链病","肾病综合征","病毒感染","使用免疫抑制剂","慢性感染"] 为防止挡土墙不均匀沉降,在新旧挡墙之间,挡墙一定长度范围内要设置() ["伸缩缝","沉降缝"] 扩散
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