Choose the word that is stressed differently from others

Choose the word that is stressed differently from others
1. A. conscious     B. fainting       C. promise     D. typhoon
2. A. reserved       B. sterile        C. stretcher     D. treatment
3. A. elevate     B. minimize       C. injection     D. adequate
4. A. emergency        B. convenient         C. stationary     D. experiment
5. A. occasion       B. ambulance         C. condition       D. instruction