Final answer:
Without additional context or a clear pattern among the given items (非, 十, #, 点), determining the next step in the series is speculative. Patterns usually involve numerical, geometric, or logical relationships which are not evident here.
Step-by-step explanation:
The question you've asked involves identifying a pattern and determining the next item in the series. Unfortunately, without additional context or information about how the items in the series relate to each other, it is impossible to definitively determine what the next step in the series is. The characters and symbols provided (默, 十, #, 点) do not have an obvious mathematical or logical relationship. Typically, a pattern can involve numerical sequences, geometric patterns, or a logical progression of symbols. Without a clear pattern, it is a matter of speculation.
Generally, in a sequence or series problem, you would look for a repeating pattern, increasing or decreasing numerical values, rotational or reflectional symmetries, or other mathematical relationships. There could also be an alphabetical or a symbolic pattern that needs to be identified. Since we do not have a pattern to work with in this case, we cannot proceed with a solution.
In problems like this, it is important to look for a commonality among all the given items or a rule that connects one item to the next. If you can provide more information or the previous steps in the series, we may be able to offer a solution.