1. Waggoner Kranmer says

    Perfect…. The most important part is ascent holding the purge to prevent a uncontrollable ascent.

  2. Mskompass says

    Why are the studensts supposed to learn this what can they use it for in their real dives?

  3. vincent7520 says

    So the students are bound to stay under and wet ?… Unfair !…

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