According to McRoberts, sign language is
A、notareallanguage
B、onlypartofthesignsystem
C、thelanguagedogsuse
D、unsuitableforbabiestolearn
发布时间:2025-06-24 18:09:16
A、notareallanguage
B、onlypartofthesignsystem
C、thelanguagedogsuse
D、unsuitableforbabiestolearn