Reading Comprehension

Is the GMAT known to give you just one RC question in some instances? (as in, not a group of 3, 4, or 5 RC questions based on one initial "prompt" RC question, but give you just one stand-alone.)
Reason I ask is because in some of the Veritas and Magoosh practice/test sessions I'm taking I'll randomly get a single Reading Comp question and no others will follow. This obviously is messing up my timing because that first prompt question is typically what takes the most time. And again, with typical RC question groupings, the related questions that follow go much quicker.
I am trying to find out of this is an outlier based on practice modules or if this is something I need to prepare for in reality and take a deeper dive into my timing for RC questions overall.
Thanks!