其它
How many terms are there in the arithmetic sequence~$2,\textbackslash{} 5,\textbackslash{} 8,\textbackslash{} 11,\textbackslash{} 14\cdots \textbackslash{} 95,\textbackslash{} 98$$?$terms. 
Overseas Competition->Knowledge Point->Counting Modules
$(98-2)\div3+1=33$ 