The disaster-stricken village was inaccessible _______ by helicopter, and the storm added to the rescuers’ difficulty

The sign “@” in zhonghua @sina.com means ________ .

She ’s never been to Japan, ___________—_________. She went there last month.

The police are looking for the witnesses,__________ words will make a difference to the victim.

______about her own safety, though she was in great danger herself