下列()方法可以证明自已的身份。1.What you know?2.What you have?3.Who you are? A.1，2，3B.2，3C.1，2D.1，3
下列()方法可以证明自已的身份。1.What you know?2.What you have?3.Who you are?
A.1，2，3
B.2，3
C.1，2
D.1，3
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