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学科
- Sexually transmitted diseases[remove]30
- Sexual ethics for teenagers5
- Gonorrhea4
- Syphilis4
- Teenagers -- Sexual behavior3
- AIDS (Disease)2
- Sexual ethics2
- AIDS (Disease) -- Patients1
- AIDS (Disease) -- Transmission1
- All about love and relationships1
- Ask Gary1
- Body temple1
- Calexico Adventist Mission School (Calexico, Calif.)1
- Christian ethics1
- Cloning1
- Dating (Social customs)1
- Editorial1
- Environmental problems1
- Ethics1
- Eye -- Diseases1