linq多ID查询，这句话查询语句应该怎么写？

 IQueryable<NewsInfo> queryable = (from c in this.db.NewsInfo

                                              where c.SmallId == 9 //这里我要查询：9,10,11,12,13多个ID，怎么写？                                              orderby c.id descending

                                              select c).Take<NewsInfo>(itop);

where c.SmallId == 9 //这里我要查询：9,10,11,12,13多个ID，怎么写？   
------解决方案--------------------
定义一个id数组，判断  数组.Contans(c.SmallId)
------解决方案--------------------

IQueryable<NewsInfo> queryable = (from c in this.db.NewsInfo

                                 where "9,10,11,12,13".Split(',').Contains(c.SmallId)                                           orderby c.id descending

                                              select c).Take<NewsInfo>(itop);

.

参考：http://blog.csdn.net/q107770540/article/details/5387946
------解决方案--------------------

 IQueryable<NewsInfo> queryable = (from c in this.db.NewsInfo

                          where new int[] { 9,10,11,12,13 }.Contains(dt.Field<Int32>("SmallId ")) 

                          orderby c.id descending

                          select c).Take<NewsInfo>(itop);

------解决方案--------------------

IQueryable<NewsInfo> queryable = this.db.NewsInfo.Where(c => new int[] { 9, 10, 11, 12, 13 }.Contains(c.SmallId)).Take<NewsInfo>(itop);