来自郭艳华的问题
Headacheisakindof______(disease).这个空应该填disease(单数)还是diseases(复数)形式?RT.是akindof名词单数还是名词复数?
Headacheisakindof______(disease).这个空应该填disease(单数)还是diseases(复数)形式?
RT.是akindof名词单数还是名词复数?


Headacheisakindof______(disease).这个空应该填disease(单数)还是diseases(复数)形式?RT.是akindof名词单数还是名词复数?
Headacheisakindof______(disease).这个空应该填disease(单数)还是diseases(复数)形式?
RT.是akindof名词单数还是名词复数?
Headacheisakindofdisease.用单数.表示一种事物,无需用复数.