问题
单项选择题
A well-designed system should be( ).①easily understood②reliable③straightforward to implement④straightforward to maintain
A.①②
B.①③④
C.②③④
D.①②③④
答案
参考答案:D
A well-designed system should be( ).①easily understood②reliable③straightforward to implement④straightforward to maintain
A.①②
B.①③④
C.②③④
D.①②③④
参考答案:D