如何将此Query转换为Linq

Question

如何将此查询转换为linq：

Select top 1 COUNT(*)
From RateTable
Group by Rate
order by COUNT(*) desc

这个表SQL是：

Create Table RateTable ( RID int primary key , Rate int );

Answer 1

db.RateTable
  .GroupBy(x => x.Rate) 
  .Select(g => g.Count())
  .OrderByDescending(g => g) 
  .First()