凡信号设备机械配件磨耗超限,强度不足,电气特性不合标准,配线老化,总计不合格和接近不合格的设备超过()时,列入大修范畴。
A、10%
B、25%
C、30%
D、50%
参考答案:B
Originally introduced by Netscape Communications, (1) are a general mechanism which HTFP Server side applications, such as CGI (2) , can use to both store and retrieve information on the HTTP (3) side of the connection. Basically, Cookies can be used to compensate for the (4) nature of HTTP. The addition of a simple, persistent, client-side state significantly extends the capabilities of WWW-based (5) .
A.fixed
B.flexible
C.stable
D.stateless
新中国成立后,中美一直处于敌对状态,这一状况直到上世纪70年代才开始改变。1972年2月,周恩来 * * 在北京迎来了前来访问的尼克松总统,这次访问的直接结果就是:
A.中美《关于建立外交关系的联合公报》的发表
B.《中美联合声明》的签署
C.《中美联合公报》的发表
D.中美建交