国内卵巢交界性肿瘤最常见的病理类型是()。 ["无性细胞瘤","子宫内膜样癌","黏液性癌","浆液性癌","内胚窦瘤"]
肛门坐浴的水温是()。 ["20~30℃","30~40℃","40~50℃","50~60℃","60~70℃"]
倾斜长壁采煤方法的改进方向和发展趋势是什么?
下列哪些是疖病的特点?() ["好发于颈后、背部、臀部","反复发作,经久不愈","此处将愈,他处又起","易脓、易溃、易敛","以上都是"]
高剂量率后装治疗机是指放射剂量率为()。 [">10cGy/min",">0.667cGy/min",">5cGy/min",">3cGy/min",">20cGy/min"]
外报是在何种历史条件下产生的?为什么外报能够一度在中国报业中占居垄断地位?