血容量正常的严重贫血患者,应输注下列哪一种制品?() ["库存全血","新鲜全血","红细胞悬液","少白细胞","年轻红细胞"]
激光找正法中激光发射器和激光反射器分别代替两只百分表固定在联轴器两侧,根据()原理输入相应数据进行自动计算。 ["A、等边三角形","B、等腰三角形","C、相似三角形","D、相等三角形"]
箱形梁波纹管坐标允许偏差() ["2.3","3.4","1.3"]
为了减少混凝土的徐变和收缩,可以增加()用量 ["水泥","外加剂","水"]
关于全血输注,下列哪一项提法是不正确的?() ["大量输注全血可使患者循环负荷加重","大量输注全血可使患者代谢负担加重","全血含有血液的全部成分,故临床疗效较好","输注全血易产生同种免疫反应","全血中代谢产物较多"]
简述最高层地方政府的地位和职责。