使用( )选项卡可以自定义HTTP错误信息，当Web服务器发生错误时，将此错误消息发送给客户端。
参考答案：自定义错误
I prefer a flat in Shuangyashan to ______ in Jiamusi, because I want to live near my Mom’ s.
A．one
B．that
C．it
D．this
A cough is usually nothing to worry about unless it lasts for ten days ___.
A．or more
B．instead
C．at most
D．only
A cough is usually nothing to worry about unless it lasts for ten days ___.