黄明胶的原料为() ["A.狗骨","B.驴皮","C.猪皮","D.牛皮","E.龟甲"]
软脑膜、血管和脑组织同时有破裂,伴有外伤性蛛网膜下腔出血为() ["冲击伤","对冲伤","脑挫伤","脑裂伤","弥漫性轴索损伤"]
某黏性土前期固结压力为180kPa,固结试验结果如下表所示。 该土样的压缩指数C为()。 ["0.13","0.15","0.17","0.19"]
x.y方案的标准离差是1.5,方案的标准离差是1.4,如两方案的期望值相同,则两方案的风险关系为() ["A、x>y","B、xC、无法确定","D、x=y"]
取某药物约0.2g,加水20ml溶解后,缓缓滴入温热的碱性酒石酸试液,即生成红色沉淀。该药应为() ["乳糖","葡萄糖","果糖","蔗糖","洋地黄毒苷"]
计划工作时间已过期或超出计划停电时间,值班负责人应()该份工作票,()签发。