IDNStudy.com, kung saan ang kuryusidad ay nagtatagpo ng kalinawan. Ang aming mga eksperto ay nagbibigay ng mabilis at eksaktong sagot upang tulungan kang maunawaan at malutas ang anumang problema.
Answer:
1. Immunization is one of modern medicine's most impressive achievements.
2. Vaccines and immunizations has been used by the international community to prevent and control diseases.