A:唐朝国家统一,社会安定
B:唐朝经济文化世界领先
C:唐朝对外政策开放开明
D:唐朝对外交通发达
如图是蚯蚓的外形图,请据作答:
一件标价为a元的商品打9折后的价格是( )
——Would you like to come to my house for dinner tonight?——I'd love to , _____ I have lots of work to do .