我国已经成为全球最大的留学输出国之一，出国留学人数年平均增长率超过25%，2011年累计出国留学人数比1978年规模扩大了375倍。留学群体低龄化趋势明显，2010年我国出国留学高中及以下学历学生占当年留学总人数的19.8%，据2011年美国统计数字显示，2010年赴美留学人数约占当年中国出国留学总人数的45%，2011年赴美留学人数为15.76万人，且仍然保持20%~30%的年增长速度。
截止2011年，我国半数以上出国留学人员是从哪年开始出国的？（）
A．2006年以前
B．2006年
C．2007年
D．2008年
参考答案：C
解析：
本题考察基期量计算。2011年我国出国留学总人数约为224.81万人，其一半为112万人左右，而2007年出国留学总人数为121.18万人。因此，本题答案为C选项。
| 阅读下列图表，从每小题所给的A B C 三个选项中选出最佳答案回答问题或完成句子。 | ||||||||||||||||
1. Who can get the job?
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| A. A 45-year-old woman who likes playing with kids. B. A 20-year-old girl who is good at English and busy on weekends. C. A 20-year-old English major who like kids and is free on weekends. | ||||||||||||||||
2. Which statement is NOT right according to the form?
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| A. We can see koala bears in Australia. B. The baby koalas live in mother's pouch till they are one year old. C. The koala bears live in the gun trees. | ||||||||||||||||
3. If your parants and you want to see the movie on Tuesday, how much should you pay?
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| A: $40 B: $120 C: $60 | ||||||||||||||||
4. It's ______ in Changsha on Monday.
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| A. snowy B. sunny C. rainy | ||||||||||||||||
5. From the report below, we know ______.
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| A. the accident happened at 3:20. B. the driver of the taxi didn't stop at the stop sign. C. The accident happened at the corner of Smith and Weston. |
