单选题
AIDS is mainly caused by ignorance (无知), and the only cure we have for AIDS at present is prevention. Your best protection is to learn how to say "No, thank you". If someone offers you something "great" from Hong Kong or the Golden Triangle (金三角), just say "No, thank you". If you are approached in a bar, or on the streets by a prostitute (妓女), just say, "No, thank you". If your boyfriend offers you a night of pleasure in his off-campus love nest, just say, "Thank you for your invitation, but I"d rather not. "
Smoking, drinking alcohol (酒), spread first among the "susceptibles", that is, those people who either are not informed about the dangers of these modern drugs or who, because of some other weakness (poverty, loneliness, desperation, etc. ) find it difficult to say "No, thank you".
But we must begin. And, in the case of the diseases of the modern world—lung cancer from smoking too much, coronary disease (冠心病) from Working too hard, mental diseases caused by stress and disappointment, and social and sexual diseases caused by "copying" the behavior of others, we must all learn to say (and to think) "AIDS stops here. I am not going to be a part of the problem".
China is on the march toward the future. But that future holds many, many new and sometimes terrifying dangers for all of us. If we are not prepared to face these new aspects of the modern world, we will be upset by them and our progress will be slowed down considerably. We must learn how to negotiate (谈判) with Western businessmen who have been negotiating for many more years than we have. We have to learn how to select those things which are good from other cultures and how to reject those things which are evil or harmful to us, as individuals and as a nation. We must learn how to blend the progressive and innovative (创新的) ideas from other countries into our great and noble culture.
单选题
The word "susceptibles" in Paragraph 2 refers to those who ______.