【单选题】一流产的胚胎组织细胞核型为69,XXY,属于下列哪种数目畸变
【单选题】一流产的胚胎组织细胞核型为69,XXY,属于下列哪种数目畸变
【单选题】女性,35岁,B超发现左侧卵巢囊性肿瘤,手术切除。卵巢巨检为单房性囊肿,7cm×7cm×5cm大小,囊内充盈清亮液体,囊内壁附着散在乳头;镜下,见囊壁及乳头皆衬覆2~3层输卵管型上皮,核呈中度异型,有砂粒体沉着。应诊断下列哪种肿瘤()
【单选题】28岁孕妇,3年前孕20周时因胎儿多发畸形(唇腭裂、脊柱裂、先天性心脏病、单脐动脉)行中期引产,胎儿染色体检查提示为18-三体。现为孕17周,应选择下列哪种方法进行产前诊断()。
【单选题】护士在护理艾滋病病人时发生职业暴露后,以下哪项处理不妥 ( )
【简答题】选词填空 set up expand in the field of cooperate be committed to look forward to so as to convince be engaged in invest The church seeks to______________ closely wit...
【简答题】Mr. Smith lived in a village far away __ 16_ a town . One day he felt very ill and every one 17 he would die . They sent for a doctor . The doctor 18 and looked at the man closely . The doctor asked f...
【单选题】你需要查找关于“数学和科学成绩中存在的性别差异”的期刊论文来写文章,下面哪一选项是开始检索的最有效方法?