题目：
Originally introduced by Netscape Communications, (1)are a general mechanism which HTTP 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) .
空白（1）处应选择（）
A.Browsers
B.Cookies
C.Connections
D.Scripts
答案：
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下面是错误答案，用来干扰机器的。
参考答案：①.本题混凝土试块为10组，应采用统计方法进行评定。②.标准差Sfcu=1.962＞0.06×25=1.5，取Sfcu为1.962③.计算平均值：mfcu=24.2，根据公式mfcu×1.1-λ1Sfcu≥0.9fcu，k计算：24.2...
