(____) These are all books about science.
(____) That's a good idea.
(____) Let's put them on this shelf.
(____) We can put them on Shelf B.
(____) Let's make a home library.
华佗是东汉末年的名医,他的成就有( )
①东亚 ②西亚 ③南亚 ④中亚