题干

2011年8月5日,标准普尔公司将美国主权信用评级由AAA下调至AA+。此事一出,立刻引起美国乃至世界范围市场的强烈震动。在随后的第一个交易日,世界范围内的股市指数大幅下跌。这一事件表明
①经济全球一体化趋势日益增强
②经济全球化使世界经济发展更加不平衡
③我们要注意维护国家经济安全
④经济全球化加剧了全球经济的不稳定性

A:①②

B:②③

C:③④

D:①④

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答案(点此获取答案解析)

C

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完形填空

    One autumn morning, I spotted a pair of wild geese on our pond. The beautiful sight caught me by 1 because I'd never seen geese there before. Thinking they would soon leave, I 2 the chance to get close to them. I wondered where they came from and why they had chosen our pond.

    The next morning, the geese were still my 3 I walked round to the mailbox, showing them I meant no harm4I couldn't resist getting a 5 look. I hid behind some trees and 6 the handsome pair quietly through the branches. I was surprised to see they were staring at me, too!

    As days passed, I started 7 to them on my trips to the mailbox. They craned (伸长) their necks and raised their heads 8 but seemed to realize I was their friend. By then, my curiosity about 9 they were staying so long at the pond changed to10. As they were feeding in the grass the other day, I discovered the reason for their 11the male had a broken left wing. He couldn't 12 and his faithful mate wouldn't leave him behind. I asked a biologist what to do. He explained that sometimes a13 wing will heal by itself and suggested letting nature take its course.

    On the first day of November, I was working in the neighborhood of the geese with my tractor. As I bent to fasten a chain from the tractor, I 14some movement from the corner of my eye. Both geese were running towards the pond. Their wings were 15 like crazy, struggling for take off. Gradually, they flew over the pond. They16 enough altitude to fly past a neighbor's house, and then circled back towards me, flying no more than 50 feet over my head as if to say goodbye. Then they were out of my17.

    The season's first snowflakes fell the very next day. The birds must have 18 that winter was coming, and it was time to go. I became fond of them during their 19 visit to our pond, and now I miss them. I'll never forget their 20 to each other.