Найдите главные члены предложения. Определите функцию инфинитива. Переведите.1. The object of microbiology is to combat and prevent epidemic diseases.2. The last step of palpation is to palpate both radial arteries simultaneously in order to determine their volume.3. Once we have developed safer, more effective antibiotics against it, the next step is to prevent ulcers and gastritis altogether.4. Its function is to aid in the coordination of voluntary movements and to maintain balance and muscular tone.5. The object of any treatment is to remove the cause.6. The object of any system of ventilation is to provide fresh and pure air.7. The first step in treatment of rickets is to remove the cause.