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.
查看答案
Questions 12 to 15 are based on the conversation you have just heard.
A. Offering some suggestions on foreign language learning.
B. Asking the woman for help to improve his English.
C. Discussing with the woman how to listen to a language regularly.
D. Talking about the importance of learning English.
Questions 19 to 21 are based on the passage you have just heard.
A. Dogs can work for the police.
B. Dogs can accompany old people.
C. Dogs can protect business premises.
Dogs can guide the blind.
Questions 12 to 15 are based on the conversation you have just heard.
A. By listening to the radio.
By watching TV commercials.
C. By watching movies in that language.
D. By listening to foreign songs.
Questions 19 to 21 are based on the passage you have just heard.
A. They gain some knowledge about dogs" habits.
B. They learn to be responsible for pet dogs.
C. They learn how to get on well with the nature.
D. They know how to train their pet dogs.
微信支付 
支付宝支付