如果服务器不能实施该项指令，或者拒绝进入，它可以用否定回应参数发出安全进入指令作为回应。

If the Server cannot execute the service, or if access is denied, it shall issue a SecurityAccess response primitive with the Negative response parameters.

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为了保护我们自己免于单独的菜单进入指令，我们能使用菜单和标题告诉系统在那个菜单下的那页将被提供。

In order to save ourselves from a separate menu entry directive, we can use the menu and title attribute to tell the system under which menu the page will be available.

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就生产资料市场来说，1978年以前，国家指令性计划分配的生产资料产品有791种，现在只保留5种，其余都进入市场。

Before 1978, there were 791 products belonging to means of production allocated according to state plans, but now only five of them remain, and the rest have entered the market.

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