Questions 12 to 15 are based on the conversation you have just heard.
A. Where the woman studies.
B. The acceptance rate at Leeds.
C. Leeds’ tuition for international students.
D. How to apply for studies at a university.
查看答案
Questions 16 to 18 are based on the passage you have just heard.
A. They help farmers keep diseases in check.
B. Many species remain unknown to scientists.
C. Only a few species cause trouble to humans.
D. They live in incredibly well-organized colonies.
Questions 19 to 21 are based on the passage you have just heard.
A. The function of the human immune system.
B. The cause of various auto-immune diseases.
C. The viruses that may infect the human immune system.
D. The change in people’s immune system as they get older.
Questions 19 to 21 are based on the passage you have just heard.
A. Report their illnesses.
B. Offer blood samples.
C. Act as research assistants.
D. Help to interview patients.
Questions 22 to 25 are based on the passage you have just heard.
A. His students had trouble getting on with each other.
B. A lot of kids stayed at school to do their homework.
C. His students were struggling to follow his lessons.
D. A group of kids were playing chess after school.
微信支付 
支付宝支付