信息系统开发方法有哪些( )
A.原型法
B.BSP法
C.CSF法
D.CASE法
参考答案:A,B,C,D
连词组句。
1. your, do, does, What, brother, like, to
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2. father, mother, to, for, a, go, and, walk, my, like
3. go, to, we, the, fly, park, kites, to
A.1A
B.2A
C.3A
D.无法判断