氧主要存在于机体的哪一部位（） ["肺","血清","线粒体","白蛋白","红细胞"]
猪带绦虫对人体的主要危害是（） ["小钩和吸盘对肠壁的刺激","吸收大量的营养","代谢产物毒素作用","六钩蚴穿过组织时的破坏作用","囊尾蚴寄生组织器官所造成的损害"]
视神经全长为（） ["35mm","40mm","45mm","50mm","55mm"]
注意缺陷多动障碍的核心症状是（） ["注意缺陷","活动过多","行为冲动","智力低下","被害妄想"]
肺动脉压是体循环压的（） ["相等","1/2","1/4","1/5","1/6"]
概算定额手册的内容基本由说明和（）组成。
