低压设备的绝缘电阻，一般不低于（）MΩ
A.0.5
B.0.25
C.2
参考答案：A
[问题5]如果Web服务器管理员准备预先设置一些受信任的客户端证书，在图16-9中如何进行配置
Today __________ February fifteenth. Yesterday __________ February fourteenth.[ ]
A. is, was
B. was, is
C. do, did
D. did, do
