为了保证人身安全,防止触电事故的发生,应与带电体保持的最小安全距离称为安全距离,其值为()。
A、250mm
B、300mm
C、350mm
D、400mm
参考答案:C
下列特种设备安装过程监督检验的一般程序中,正确的是()。
A.告知→受理→监检→出具监督检验证书
B.申请→受理→监检→出具监督检验证书
C.告知→申请→监检→出具监督检验证书
D.申请→受理→出具监督检验证书→监检
Originally introduced by Netscape Communications, (66) are a general mechanism which HTTP Server side applications, such as CGI (67) , can use to both store and retrieve information on the HTTP (68) side of the connection. Basically, Cookies can be used to compensate for the (69) nature of HTTE The addition of a simple, persistent, client-side state significantly extends the capabilities of WWW-based (70) .
A.fixed
B.flexible
C.stable
D.stateless