How old was Ed when he played with a big team? A: 15 B: 11 C: 4 D: 16

15%11=（ ） 3%11=（ ） （-3）%11=（ ）

（15，11）汉明码的H矩阵规模是 A: 15*11 B: 11*15 C: 4*15 D: 4*11

Questions 11 to 13 are based on the following interview with George Schaller, a world famous biologist, about his painstaking studies of mammals all over the world. You now have 15 seconds to read Questions 11 to 13. When does Mr. Schaller feel scared of wild animals（） A: When the contact is not well-planned. B: When the animals are irritated. C: When he recalls the contact afterwards. D: When he is reminded of the danger.

M: The light for London left 15 minutes ago. W: That’s right. It is already 12:05.Q: When did the plane leave? A: At 12:05. B: At 11:35. C: At 11:50. D: At 10:25.

沪深300股指期权仿真交易合约最后交易日的交易时间是（）。 A: A9：00—11：30，13：00—15：15 B: B9：15—11：30，13：00—15：00 C: C9：30—11：30，13：00—15：00 D: D9：15—11：30，13：00—15：15

中银吉祥金的回购时间是周一至周五的（）。 A: 9：15—11：15 B: 9：00—11：00 C: 9：00—11：15

When were they going to get to the station A: Before 11: 40. B: Before 11: 00. C: At 11: 30.

Which one can hurt the lung when acupuncture is too deep: A: Jianyu(LI 15) B: Jianliao(TE 14) C: Tianzong(SI 11) D: Jianjing(GB 21)

Questions 11～13 are based on the following conversation. You now have 15 seconds to read Questions 11～13. What are the students doing when the man arrives in class A: Taking an examination. B: Drawing graphs. C: Giving presentations. D: Having a class of discussion.