| Soon after his appointment as
secretary-general of the United Nations in 1997, Kofi Annan lamented that he was
being accused of failing to reform the world body in six weeks. "But what are
you complaining about" asked the Russian ambassador: "You’ve had more time than
God." Ah, Mr. Annan quipped back, "but God had one big advantage. He worked
alone without a General Assembly, a Security Council and [all] the
committees." Recounting that anecdote to journalists in New York this week, Mr. Annan sought to explain why a draft declaration on UN reform and tackling world poverty, due to be endorsed by some 150 heads of state and government at a world summit in the city on September 14th- 16th, had turned into such a pale shadow of the proposals that he himself had put forward in March. "With 191 member states", he sighed, "it’s not easy to A. Peacebuilding Commission B. UN Commission on Human Rights C. terrorism D. the Security Council [单项选择]6岁女孩。自幼唇、指（趾）甲床青紫，乏力，活动后气促，体格发育落后，胸骨左缘第2~3肋间可闻及Ⅲ级收缩期杂音，经超声心动图证实为先天性心脏病，法洛四联症。此患儿其心脏由哪4种畸形组成（）
A. 主动脉狭窄，室间隔缺损，肺动脉骑跨，右心室肥厚 B. 主动脉狭窄，房间隔缺损，主动脉骑跨，左心室肥厚 C. 肺动脉狭窄，室间隔缺损，主动脉骑跨，右心室肥厚 D. 肺动脉狭窄，房间隔缺损，肺动脉骑跨，左心室肥厚 E. 肺动脉瓣狭窄，房间隔缺损，主动脉骑跨，右心室肥厚 [单项选择] Landfills
You have just finished your meal at a fast food restaurant and you throw your uneaten food, food wrappers, drink cups, utensils and napkins into the trash can. You don’’t think about that waste again. On trash pickup day in your neighborhood, you push your can out to the curb, and workers dump the contents into a big truck and haul it away. You don’’t have to think about that waste again, either. But maybe you have wondered, as you watch the trash truck pull away, just where that garbage ends up.
Americans generate trash at an astonishing rate of four pounds per day per person, which translates to 600,000 tons per day or 210 million tons per year! This is almost twice as much trash per person as most other major countries. What happens to this trash Some gets recycled (回收利用) or recovered and some is burned, but the majority is buried in landfills.
How Much Trash Is Generated
Of the 210 million tons of trash, or solid waste,
A. Y B. N C. NG [多项选择]分馏塔选用固舌形塔盘的好处是（）。
A. 操作弹性大 B. 处理量大 C. 压降较小 D. 塔板不易堵塞 [单选题]（）可能引起刚性接触网异常磨耗。
A.针式绝缘子脏污 B.汇流排弛度过大 C.电缆端子未紧固 D.隔离开关故障 我来回答: 提交
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