戊戌变法期间，湖南《湘报》发表了《醒世歌》：“若把地球来参详，中国并不在中央，地球本是浑圆物，谁是中央谁四旁。”这首诗歌所表达的主要思想是(  )。

 many nice coats! I can't decide which one to buy.

B: ____

A: Oh, it looks nice. ____

B: Let me see. It's more than 400 yuan.

A: It's too expensive. I prefer the pink one. ____

B: ____I know you want to appear special.

A : Good idea ! ____

B: It's a silk one.

A: Perfect. I'll try it on.

A: What's it made of?

B: How about the green one?

C: What do you think of it?

D: It’s OK, but why not try on a Chinese Tang costume?

E. How much is it?

1.2乘2.1的积加上10.5除以2.1的商，和是多少？