Which parameter can be tuned to affect the selection of a static route as a backup.when a dynamic protocol is also being used?（） [" link bandwidth"," hop count"," link cost"," administrative distance"," link delay"]
血站执业及中心血库开展采供血业务，必须经执业验收及注册登记。其中血液中心的执业验收由（） ["卫生行政部门进行","国务院卫生行政部门委托输血协会进行","卫生行政部门委托卫生监督所进行","卫生行政部门医政司","红十字会"]
紫外线治疗护理错误的是（） ["禁用于风湿性疼痛的治疗","禁用于急性湿疹的治疗","治疗时保护病人及操作者的眼睛","严密遮盖非照射部位","紫外线灯管需定期更换"]
西方“启蒙”一词原意是？（） ["照亮","启发蒙昧","开化","革命"]
心绞痛发作的典型部位为：（） ["心前区","胸骨中、上段胸骨后","胸骨下段","心尖段","剑突下"]
立体种养。
