Questions 16 to 18 are based on the passage you have just heard.
A. It"s a common disease.
B. It"s both mystifying and frightening.
C. It"s not easy to be infected.
D. It spreads very quickly.
查看答案
Questions 12 to 15 are based on the conversation you have just heard.
A. Carefulness.
B. Earnestness.
C. Persistence.
D. Intelligence.
Questions 19 to 21 are based on the passage you have just heard.
A. Dogs always make noises.
B. Dogs bite their owners when in a rage.
C. Some dogs might cause traffic accidents.
Dogs easily spread disease.
Questions 12 to 15 are based on the conversation you have just heard.
A. It helps one speak the language with confidence.
B. It helps one improve his reading skills.
C. It encourages one to learn more customs.
D. It enables one to have much fun.
Questions 16 to 18 are based on the passage you have just heard.
A. Casual contact with AIDS victims will not lead to AIDS.
B. The public don"t know how AIDS spreads yet.
C. There are many ways of contact in catching AIDS.
Doctors don"t know how to prevent the spread of AIDS.
微信支付 
支付宝支付