如果轿厢与对重（或平衡重）之下确有人能够到达的空间，应满足下面要求：() ["井道底坑的底面至少应按5000N/m","将对重缓冲器安装于一直延伸到坚固地面上的实心桩墩","或对重（或平衡重）上装设安全钳","将轿厢缓冲器安装于一直延伸到坚固地面上的实心桩墩"]
低热()中等度热() ["37.5℃～38℃","39.1℃～41℃","38.1℃～39℃",">41℃","39.1℃～40℃"]
高热()超高热() ["37.5℃～38℃","39.1℃～41℃","38.1℃～39℃",">410C","39.1℃～40℃"]
心前区疼痛呈压榨样并有窒息感常见于()右上腹疼痛放射至右肩胛下区常见于()头痛伴呕吐常见于() ["输尿管结石","十二指肠溃疡","急性胆囊炎","心绞痛","颅内压增高"]
电梯运行时突然停车，可能的原因是（）. ["层门门锁开关断开","限速器开关动作","安全钳开关动作","断电","张紧轮开关动作"]
发热伴寒战常见于()发热伴结膜充血常见于()
