Throw two dice of the same quality and size. The six sides of each die are marked with number of dots from $$1$$ to $$6$$, respectively. Among the following options,~\uline{~~~~~~~~~~}~is an impossible event. 
Overseas Competition->Knowledge Point->Counting Modules->Statistics and Probability
The maximum sum is $$6+6=12$$, so "the sum of dots is $$13$$" is an impossible event.  So $$\text{D}$$ is the answer. 