What can we learn about DNA testing from the dialog?
A.It has found some criminals.
B.It has found most criminals.
C.It has freed some innocent people from prison.
D.It has proved many prisoners to be guilty.
正确答案是C
What can we learn about DNA testing from the dialog?
A.It has found some criminals.
B.It has found most criminals.
C.It has freed some innocent people from prison.
D.It has proved many prisoners to be guilty.
正确答案是C