某男性，不慎摔倒，伤后感到右髋部疼痛，送往医院检查，X线片诊断：右股骨颈经颈型骨折，移位明显。

上述病人面临的最大问题是（）

A.疼痛 

B.髋内翻 

C.骨折不愈合 

D.股骨头缺血性坏死 

E.感染

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) fortheproposedsystem.

空白（5）处应选择（）

A.hardware and software specification 

B.system performance specification 

C.formal requirements definition 

D.general problem statement