目前认为每次输入的血液中含有的白细胞数少于多少不发生同种致敏() ["5×1010","5×109","5×108","5×107","5×106"]
对于板调整后的折算活载q’=() ["q/4","q/2","3q/4","g+q"]
男性,57岁。近1个月来上腹部疼痛,低热,体重减轻,2周前尿色变深,继而巩膜、皮肤进行性黄染。查体:肝肋下4cm,边缘钝,右上腹可及6cm×4cm大小的梨形肿块。为确认右上腹肿块是否有肿大的胆囊,最合适的检查方法为() ["A.扪诊时有无囊性感","检查十二指肠降部有无弧形压迹","B超","CT","经皮穿刺"]
下列哪种雄鸟具有交配器()。 ["褐马鸡","乌鸦","苍鹰","绿头鸭"]
生物反馈治疗主要适用于() ["躁狂症","精神分裂症","儿童精神病","疑病症","焦虑症"]
对符合哪些条件的登记申请,房屋登记机构应当予以登记?