欲对有200个数据的定量资料编制频数分布表描述其分布特征,在分组时,其组段数宜选择
A.4~6B.8~15C.30~50D.51~60E.61~70
参考答案:B
慢性骨髓炎最有意义的诊断依据是()。
A.皮肤有窦道并见死骨排出
B.局部肿痛及患肢功能障碍
C.寒战、高热等感染中毒症状
D.白细胞总数及中性粒细胞增高
E.X线未见骨质破坏和骨膜反应
Which of the following interventions would likely be most effective for the client to use at home when managing the discomfort of rhinoplasty the initial 2 days after surgery
A.Applying ice compresses.
B.Applying warm, moist compresses.
C.Lying in a prone position.
D.Blowing the nose gently.