●As an important phase in software development，software design is the continuation of software requirement analysis phase． (69) ．
Ⅰ．software structure
Ⅱ．software document
Ⅲ．software module
Ⅳ．software procedure
Which of the following should be included in software design phase?
(69) A．Ⅱ andⅢ
B．Ⅰ andⅡ
C．Ⅰ，Ⅱ andⅢ
D．All
