男性，56岁。既往有高血压病史10余年。本次因大便后突发头痛、偏瘫4h伴呕吐2次送入

Many of the activities performed during the preliminary investigation are still being conducted in (1) , but in much greater depth than before. During this phase, the analyst must become fully aware of the (2) and must develop enough knowledge about the (3) and the existing systems to enable an effective solution to be proposed and implementeD. Besides the (4) for process and data of current system, the deliverable from this phase also includes the (5) for the proposed system.

5（）

A．hardware and software specification

B．system performance specification

C．formal requirements definition

D．general problem statement

G+菌和G-菌细胞壁结构和组成上有何差别，以及与革兰氏染色反应的关系。

产程进展到一定阶段后，宫缩减弱，出现宫缩乏力（）

A.低张性宫缩乏力

B.高张性宫缩乏力

C.原发性宫缩乏力

D.继发性宫缩乏力

E.正常子宫收缩乏力

被FDA批准用于治疗乙肝的细胞因子是（）

A.IFN-α

B.G^-CSF

C.IFN-γ

D.TNF

E.IL-2

肋骨骨折的胶布固定法粘贴胶布的最佳时机是（）

A.吸气之初

B.呼气之初

C.吸气之末

D.呼气之末

E.吸气之中