12.1

1. The advancement of medical technology has significantly improved the survival rate of critically ill patients. 翻译：医疗技术的进步显著提高了危重病人的存活。 ​ 2. It is universally acknowledged that protecting the ecological environment is crucial for sustainable development. 翻译：众所周知，保护生态环境对可持续发展至关重要。 ​ 3. Students majoring in biomedicine should lay a solid foundation in basic sciences like biology and chemistry. 翻译：生物医学专业的学生应在生物学、化学等基础科学领域打下坚实基础。