They contend that three months 'study of algorithms and data structures is barely enough to get an entry-level job.

他们认定，三个月中学习到的算法和数据结构连从事入门级工作都不怎么够。

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In addition, the solution has enhanced wireless network security by using three-level key structures and achieves a secure fast roaming.

另外，本方案采用三层密钥结构进一步增强了无线网络的安全性，实现了安全快速的漫游。

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