48. What is data anonymisation?
(A) coding identities
(B) removing identities
(C) confirming identities
(D) maintaining original identities
(E) faking identities
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統計: A(0), B(5), C(0), D(1), E(1) #3853975
統計: A(0), B(5), C(0), D(1), E(1) #3853975