Results from a recent research indicate that ______ daydreaming is ______ means of relaxation.

1. A.
   the; a
2. B.
   不填; the
3. C.
   a; the
4. D.
   不填; a

Results from a recent research indicate that ______ daydreaming is ______ means of relaxation.

A. the; a        B. 不填; the   C. a; the  D. 不填; a

Results from a recent research indicate that ______ daydreaming is ______ means of relaxation.

A. the; a        B. 不填; the   C. a; the  D. 不填; a

Results from a recent research indicate that ______ daydreaming is ______ means of relaxation.

 Results from a recent research indicate that ______ daydreaming is ______ means of relaxation.

A. the; a         B. 不填; the        C. a; the        D. 不填; a