元朝是中国历史上首个大一统的少数民族王朝。她疆域辽阔，民族众多。以下事件发生在元朝的是（    ）

①建立了蒙古国  ②将西藏纳入行政版图 ③灭掉西夏政权 ④灭掉南宋完成全国统一

某市一位中学生买了本印有“最喜欢的国家：台湾”字样的信笺。发现问题后，他及时向报社记者投诉，希望有关部门严厉查处生产信笺的厂家。该同学的行为说明他（    ）

①自觉履行公民义务             ②有高尚的爱国情操

③喜欢管闲事，自找麻烦     ④敢干同分裂祖国的行为作斗争

    I don't like to stay at home during holidays. Last summer, my family took a 1to Hong Kong. It 2an interesting trip.

    We went there by plane, because we wanted to get there quickly. We3 there at about eleven o'clock and we had lunch there. We ate the seafood. It was delicious. The weather was sunny and 4 so we swam in the sea. There were 5people on the beach.

    Disneyland is the place that I like best there, so we 6visited the Disneyland. It is a 7place. We stayed in Hong Kong 8a week. We took many photos and bought lots of souvenirs. And then, we went home9.We just10a good time.

    I enjoyed the trip. It was really a fantastic trip.

关于南亚气候特点的叙述，正确的是（　　）

①南亚大部分地区属于热带季风气候，一年中分明显的干湿季

②从每年的3月至5月受干燥的东北季风影响，凉爽宜人

③南亚地区降水的年际变率大，易产生旱涝灾害，对农业生产影响很大

④南亚地区雨季湿润的西南气流来自印度洋．