A:当时社会生产力发展水平
B:巩固无产阶级专政的需要
C:对斯大林个人崇拜的形成
D:粉碎外国武装干涉的需要
A. It's a cake.
B. Hello, Li Hong.
C. Thank you.
Li Hong: Hello, Gao Ling.
Gao Ling: ____
Li Hong: What's this?
Gao Ling: ____ Happy birthday to you.
Li Hong: ____
Gao Ling: You're welcome(不用客气).