例句與造句

1. That's why U . S . security officials refuse to let it be sold abroad, even though some foreign firms already offer advanced encryption systems.
2. He participated in a group that designed the algorithm that was the runner-up in the competition that chose the U . S . Advanced Encryption System in November 2001.
3. Schmidt contended that U . S . officials " appear to be running a jobs export program " by barring Novell, Microsoft and others from exporting their most advanced encryption systems even as foreign firms craft similar or even better encoding tools.
4. It's difficult to find advanced encryption system in a sentence. 用advanced encryption system造句挺難的