SQL not in 转化为Linq

SQL语句：

 select * from QY_Business where StatusID=1 and  BusinessID not in(select OtherBusinessID from QY_BusinessAssignConsumePlaceDetail where StatusID =1)

Linq语句：

var result = db.QY_Business.Where(c => c.StatusID == 1 &&!(from y in db.QY_BusinessAssignConsumePlaceDetailwhere y.StatusID == 1 select y.OtherBusinessID).Contains(c.BusinessID));