Friday, September 16, 2022
Thursday, September 22, 2022
Friday, September 16, 2022
Thursday, September 22, 2022
Tuesday, September 20, 2022
问题:某地有30万人口,农村居民占90%,现欲作农村居民HIV感染情况及其影响因素的调查研究,较适宜的调查方法是()...
Thursday, September 22, 2022
Tuesday, September 20, 2022
Thursday, September 22, 2022
Thursday, September 22, 2022
问题:免疫比浊法测定时为维持抗原-抗体复合物相对不溶解性()...
Thursday, September 22, 2022
问题:男性,32岁,农民。10天前在劳动中右手背挫伤,3天前突然畏寒,继之寒战,高热40℃就诊。化验:WBC25.2×109/...
Tuesday, September 20, 2022
Thursday, September 22, 2022
问题:由一系列蛋白激酶的酶促级联反应,将胞外信号传递到细胞核内的为()...
Thursday, September 22, 2022
问题:在慢性粒细胞性白血病(CML)患者染色体组中发现有费城染色体,其产生的融合蛋白导致了癌基因活化,这种癌基因的激活方式属于...
Thursday, September 22, 2022
Thursday, September 22, 2022
问题:线性放大器中输入信号放大10倍,输出信号放大()...
Monday, September 19, 2022
Thursday, September 22, 2022
Sunday, September 18, 2022
Saturday, September 17, 2022