当查询一个压缩文件时，首先要建立压缩文件输入流的对象是______。A．以选中的压缩

急性心肌梗死患者最早、最突出的症状是（）

A.心源性休克

B.室性期前收缩

C.心前区疼痛

D.呼吸困难

E.腹痛、腹泻

发现早期微小骨结核的检查方法是
确诊早期滑膜结核的重要检查是

A．X线检查 

B．CT检查 

C．抗酸染色 

D．关节镜检查 

E．结核菌素试验 

Object-oriented analysis (OOA) is a semiformal specification technique for the object-oriented paradigm. Object-oriented analysis consists ofthree steps. The first step is (6) . It determines how the various results are computed by the product and presents this information in the form of a (7) and associated scenarios. The second is (8) , which determines the classes and their attributes, then determines the interrelationships and interaction among the classes. The last step is (9) , which determines the actions performed by or to each class or subclass and presents this information in the form of (10) .

A．use-casemodeling

B．classmodeling

C．dynamicmodeling

D．behavioralmodeling

设计修复体龈缘的位置时不必考虑（）

A.患牙的形态

B.修复体的固位

C.患牙的牙周状况

D.患者的口腔卫生状况

E.咬合力的大小

红细胞大小不一最常见于哪类贫血（）

A.缺铁性贫血

B.失血性贫血

C.再生障碍性贫血

D.巨幼细胞贫血

E.珠蛋白生成障碍性贫血（地中海贫血）