In most wide area networks, the communication subnet consists of two distinct components:transmission lines and ().
A. networts
B. switching elements
C. computers
D. data terminal equipment
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用随机数表、随机数生成器或随机数骰子进行抽样的方法是( )。
A. 分层抽样
B. 二次抽样
C. 系统抽样
D. 单纯随机法
设V1为无向连通图G的点割集,记G删除V1的连通分支个数为p(G-V1)=k,下列命题中一定为真的为()。
A. k≥2
B. k≥3
C. k≤2
D. k=2
单元测试是软件测试的基础性测试,它通常采用的方法是()。
A. 静态测试
B. 动态测试
C. 静态、动态测试
D. 静态、动态测试和复审
White box testing of software testing is a test for software structure. Which of the following item should not be included in the content of white box ?()
A. boundary value analysis
B. statement testing
C. branch testing
D. path testing