常用钙拮抗药中,"选择性舒张脑血管,解除其痉挛,能防止缺血缺氧后神经细胞内积蓄所致的细胞损害"属于() ["硝苯地平","氨氯地平","尼莫地平","维拉帕米","氟桂利嗪"]
下列不适合选择腹腔镜检查的情况是() ["异位妊娠","不孕症","过度肥胖","子宫内膜异位症","寻找腹腔内异物"]
以下哪个为雌二醇的化学命名() ["17β-羟基-19-去甲-17α-孕甾-4烯-20-炔-3酮","孕甾-4-烯-3,20-酮","雌甾-1,3,5(10)-三烯-3,17β-二醇","17β-羟基雌甾4-烯-3-酮-3-苯丙酸脂","17α-甲基-17β-羟基雄甾-4-烯-3-酮"]
C6150车床控制线路中变压器安装在配电板的()。 ["A、下方","B、右方","C、上方","D、左方"]
常用钙拮抗药中,"起效慢,可减轻由扩管所致的反射性心率加快、头痛、面红等症状"属于() ["硝苯地平","氨氯地平","尼莫地平","维拉帕米","氟桂利嗪"]
土建工程施工中哪些特殊作业必须持证上岗?