冶金工厂的粉尘测定项目有空气中粉尘浓度、（）和粉尘中游离二氧化硅。
参考答案：粉尘分散度
按口服补液盐(ORS)规定配制的含钠液相当于()
A．1/5张
B．1张
C．1/2张
D．2/3张
E．3/4张
A client has a nasogastric tube inserted at the time of abdominal perineal resection with permanent colostomy. This tube will most likely be removed when the client demonstrates which of the following
A．Absence of nausea and vomiting.
B．Absence of stomach drainage for 24 hours.
C．Passage of mucus from the rectum.
D．Passage of flatus and feces from the colostomy.
