单选题：The prototyping model of software development is __.
The prototyping model of software development is __. @[B](1)
A. A reasonable approach when requirements are well defined.
B. A useful approach when a customer cannot define requirements clearly.
C. The best approach to use for projects with large development teams.
D. A risky model that rarely produces a meaningful product.
A.A reasonable approach when requirements are well defined.
B.A useful approach when a customer cannot define requirements clearly.
C.The best approach to use for projects with large development teams.
D.A risky model that rarely produces a meaningful product.
答案：B
A. A reasonable approach when requirements are well defined.
B. A useful approach when a customer cannot define requirements clearly.
C. The best approach to use for projects with large development teams.
D. A risky model that rarely produces a meaningful product.
A.A reasonable approach when requirements are well defined.
B.A useful approach when a customer cannot define requirements clearly.
C.The best approach to use for projects with large development teams.
D.A risky model that rarely produces a meaningful product.
答案：B