What has not been attacked by hackers?
举一反三
- 262.30 % of the young trees, attacked by diseases, ________pine trees. A: is B: are C: was D: has been
- I am sure Mary has been here and () A: did what required her B: has done what required her C: has done what was required of her D: did what has been required of her
- What has the woman been preparing for?
- Never has a scholarly work of this ____ been attacked with such unbridled fury and contempt. A: statue B: static C: stature D: status
- What has always been the basis of business?