公共关系的客体指的是( )。A．公共关系活动的承担者 B．按照一定的宗旨建立起来的

制定工程成本控制标准是指规定各项成本开支和各种资源消耗的（）。

A.概算定额

B.预算定额

C.概算指标

D.数量界限

A client with a retinal detachment does not understand what happened to his eye and asks the nurse’s explanation. Which of the following would be the nurse’s best response to describe the pathology of retinal detachment

A. "The optic nerve is damaged when it is exposed to vitreous humor. "
B. "A tear in the retina permits the escape of vitreous humor from the eye. "
C. "The two layers of the retina separate, allowing fluid to enter between them. "
D. "Retinal injury produces inflammation and edema that increase intraoeular pressure. "

抢救巴比妥类药物急性中毒时，不宜采取

A．给氧，必要时人工呼吸

B．给予催吐药

C．碱化尿液，促进排泄

D．碱化血液，促进细胞内药物转运到细胞外

E．酸化尿液，促进排泄

发生在皮下组织内，呈分叶状的肿块是（）

A．表皮样囊肿

B．皮脂腺囊肿

C．腱鞘囊肿

D．蔓状血管瘤

E．脂肪瘤