题干

 下列对艾滋病和血吸虫病的认识,正确的是(    )

①二者都是严重危害人类健康的传染病  ②二者都是目前不可治愈的严重疾病  ③未成年人不可能感染上这两种疾病  ④这两种疾病都是可以预防的

A:①②   

B:①③   

C:②③

D:①④

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D

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    How to Have a Successful Teenage Life

    Everyone wants to succeed in their life, don't they? Even as a teenager, you can achieve success in your life, it really isn't that hard.____

    Do well in school. No matter how boring it is now, education will help you be a productive member in society. Try your best for excellence in school: listen to the teachers, do your homework, study, and get good grades. Doing so will help you get into a better university, which will enable you to have a bright future.____

    Do good in your community. Volunteering can not only improve your community's status, but could make you happier. Studies show that people who volunteer are less likely to develop depression(抑郁) than people who don't.____.For example, if you love animals, volunteer at an animal shelter. If you love helping the environment, plant trees or pick up litter. When you help others, it will make you feel better about yourself.

    ____.Remember, they're there to help you be the best that you can be. Respect them and value their opinions, even if they annoy you sometimes.____.You don't get to choose your teachers or your family, but you still have to put up with them. Learn how to deal with people now, because when you're an adult, you don't get to choose your boss or your co-workers, so learn how to respect them now.

A. Here are some important points that you may find helpful

B. Be nice to your parents and teachers

C. School sets you up on the right track

D. Find chances to do voluntary work that interests you

E. Keep in mind that they do the things because they care about you

F. Live life fully

G. It will help you pass time and develop your personality