把下面的图片与所给的描述对号入座。
A        B          C 
D                E
____ He is of medium height and build, with two small eyes. He is a pop singer. And he likes playing basketball very much. He is very popular with young people.
____ He is short and of medium build. He has short black hair. He is a funny actor.
____ She is heavy. She has short brown hair. She always wears glasses. She sings very well.
____ He is very tall and has short black hair. He is a basketball player, and he plays it very well. Now he is a college student in Shanghai Jiaotong University.
____ She is thin, with long black hair and big eyes. She is a movie star. She is in the play "Palace", and she is very popular with young people.

下图中山脉是各大洲重要的山脉。根据图中信息，完成下列问题。

找规律填一填。

①____、8、____、12、____、____  ②____、13、____、____、19

某种玉石的主要成份是NaAlSi₂O₆。关于NaAlSi₂O₆的说法正确的是(  )