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【简答题】
R: A B C 3 2 7 6 5 2 7 7 3 S: A B C 3 7 4 2 5 3 计算 R ∪ S , R - S , R∩S , R×S
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反馈参考答案：
举一反三
【单选题】用边界值分析法,假定1
A.
X=1，X=2，X=9，X=10
B.
X=2，X=9
C.
X=1，X=10
D.
X=1，X=5，X=6，X=10
【单选题】用边界值分析法,假定 1
A.
X=1, X=100
B.
X=1, X=2, X=99, X=100
C.
X=2, X=99
D.
X=0, X=1, X=99, X=101
【单选题】It is the level for which minimum appropriate protective security measures shall be maintained at all times
A.
At this level, minimum protective security measures shall be kept for a period of time
B.
At this level, maximum protective security measures shall be kept for a period of time
C.
At this level, minimum protective security measures shall be kept all the times
D.
At this level, maximum protective security measures shall be kept all the times
相关题目：
【单选题】用边界值分析法,假定1
A.
X=1，X=2，X=9，X=10
B.
X=2，X=9
C.
X=1，X=10
D.
X=1，X=5，X=6，X=10
【单选题】用边界值分析法,假定 1
A.
X=1, X=100
B.
X=1, X=2, X=99, X=100
C.
X=2, X=99
D.
X=0, X=1, X=99, X=101
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