CT扫描中使用平滑(或软组织)算法,结果是() ["提高空间分辨率","减少噪声","改善密度分辨率","降低空间分辨率","增加噪声"]
新生儿胆红素脑病的特点是() ["一般发生于生后2~7天","脑脊液血性","伴有神经系统症状","早产儿多见","患儿可伴有高热"]
急性胆囊炎的致病菌主要来源于()。 ["由肠道至胆道","经门静脉而来","邻近脏器","淋巴管道","经动脉系统而来"]
CD分子分布于下列哪些细胞表面() ["A.髓系细胞","B.B细胞","C.NK细胞","D.T细胞","E.血小板"]
地震区多层砌体房屋结构体系的承重方案中,下列()方案合适。 ["下部采用横墙承重,上部采用纵墙承重方案","区段性纵墙或横墙承重方案","横墙承重或纵横墙共同承重方案","纵墙承重方案"]
职务与职位的区别是什么?