Составить общие и специальные вопросы к предложениям1. the amount of oil produced depends on the recovery method used.2. pipes from cold-resistant grades of steel will not be affected bytemperatures of 50°-60° below zero.3. the oil field has always been of economic significance.4. one can choose the most accurate method only by comparing it withothers.

kristinannm17    2   12.05.2019 18:46    1