rice是可數(shù)名詞嗎

　　例句：

　　1、Thai land exports its fine rices around the world.

　　泰國將精米出口到世界各地。

　　2、The land is cultivated with rice, cotton and vegetable.

　　地里種著水稻、棉花和蔬菜。

　　3、Rice measures more easily than flour.

　　大米比面粉容易計量。