患者,男,23岁。肢体小关节周围疼痛,酸胀,部位不局限,疼痛部位属于() ["急性痛","中心痛","慢性痛","浅表痛","深部痛"]
下列哪种因素可使冠状血管阻力增加,冠状血流减少() ["缺氧","贫血","pH下降","CO2潴留","冠状动脉血氧分压升高"]
下列除外哪项,均为阻塞性脑血管病所致的脑梗死形态特点() ["常伴脑动脉粥样硬化合并血栓形成","梗死灶早期肉眼改变不明显","坏死组织液化,囊肿形成","小胶质细胞增生,出现巨噬细胞和泡沫细胞(格子细胞)","最终机化形成纤维瘢痕"]
下列不属于椎管内镇痛不良反应的是() ["恶心","呼吸抑制","尿潴留","皮肤疼痒","心律不齐"]
关于膜电位的描述,正确的是() ["极化是指静息时细胞膜两侧外正内负的分极状态","去极化是指膜内电位负值减小的过程","反极化是指跨膜电位为外负内正的状态","复极是指膜内电位负值增大恢复极化的过程","超极化是指膜内电位负值超过静息电位的水平"]
一台空预器跳闸处理步骤有哪些?