题目

Despite all the reports of Internet security attacks over the years, including the recent ones on Google’s e-mail service, many people have reacted to the break-ins with a shrug (耸肩). Mr. Shulman and his company examined a list of 32 million passwords that an unknown hacker（黑客） stole last month from Rock You, a company that makes software for users of social networking sites like Facebook and MySpace. The list was briefly posted on the Web, and hackers and security researchers downloaded it. The list provided an unusually detailed window into computer users’ password habits. Ty下图中①、②、③、④表示气压带，⑤、⑥、⑦表示风带，读图完成下题。1.有关图中气压带和风带的正确判断是A.①—低气压带—冷暖空气相遇形成B.⑤—低纬信风带—东南风C.②—高气压带—空气冷却下沉形成D.⑥—中纬西风带—西南风2.当图中④地周围出现极夜时，下列地理现象最有可能出现的是A.武汉的梅雨B.南京的伏旱C.北京的寒潮D.哈尔滨的洪涝