AIDS and SARS may have made the headlines, but rabies(狂犬病)is now ________ killer than both．

1. A.
   a bigger
2. B.
   big
3. C.
   bigger
4. D.
   the biggest

AIDS and SARS may have made the headlines, but rabies （狂犬病） is now _____ killer than both.

A. a bigger         B. big              C. bigger           D. the biggest

AIDS and SARS may have made the headlines, but rabies （狂犬病） is now _____ killer than both.

A. a bigger         B. big              C. bigger           D. the biggest

（2010·辽瓦房店高级中学届高三9月月考）AIDS and SARS may have made the headlines, but rabies（狂犬病）is now _____ killer than both.

A. a bigger         B. big        C. bigger   D. the biggest