The figure above are instances of two relations that might constitute part of a banking database.Indicate the following: Another equivalent way to present each relation.
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【单选题】The process of photosynthesis can be considered as a series of reactions in which light energy fr om the sun is .
【单选题】Read the following statement and decide whether it is fact or opinion.It is clear that the only reasonable solution to return to nature is to utilize solar energy.