【多选题】
Given the following code， which statements concerning the objects referenced through the member variables i， j and k are true， given that any thread may call the methods a， b and c at any time？ （） <br /> class Counter {  int v = 0；  <br /> synchronized void inc（） { v++； }  <br /> synchronized void dec（） { v--； }  <br /> }  <br /> public class Q7ed5 {  <br /> Counter i；  <br /> Counter j；  <br /> Counter k；  <br /> public synchronized void a（） {  <br /> i.inc（）；  <br /> System.out.println（"a"）；  <br /> i.dec（）；  }  <br /> public synchronized&en
A、i.v is guaranteed always to be 0 or 1.
B、j.v is guaranteed always to be 0 or 1.
C、k.v is guaranteed always to be 0 or 1
D、j.v will always be greater than or equal to k.v at any give time.
E、k.v will always be greater than or equal to j.v at any give time.
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