火电厂在密集敷设电缆的电缆夹层内，不得布置热力管道、油气管以及其他可能引起着火的管道和设备。（）
参考答案：对
正确的循环冗余校验码的检错能力描述是( )
A．可检测出所有三比特的错
B．可检测出所有偶数位错
C．可检测出所有奇数位错
D．可检测出所有大于、等于校验位长度的突发错
There are seven people in Kangkang's family. They are his grandparents, his parents, his uncle,
aunt and him. So we call it . [ ]
A. extended family
B. nuclear family
C. DINK family
D. celibate (独身主义者)
