Several responders expressed their concern about ( ) (nationality, age, and sex could identify them). Eleven members also declined to disclose nationality.
A.ambiguous B.ambiguity C.anonymous D.anonymity正确答案D
Several responders expressed their concern about ( ) (nationality, age, and sex could identify them). Eleven members also declined to disclose nationality.
A.ambiguous B.ambiguity C.anonymous D.anonymity正确答案D