Start from computer information security problems, we introduce the criteria about secure evaluating.

本文首先从计算机信息安全问题出发，介绍了有关的安全评测标准；

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We must start at once to expand it and to secure our communications to it.

我们必须迅速使之开始扩充，并确保到达该地的交通线。

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We must start at once to expand it and to secure our communications to it.

我们必须迅速使之开始扩充，并确保到达该地的交通线。

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