Choose the word or phrase (a, b, c or d) that best fits the blank space in the following passage.
People use energy each day for transportation, cooking, heating and cooling rooms, manufacturing, lighting, (31)______, and many other uses. The choices people make about how they use energy – (32)______ machines off when they’re not using them or choosing to buy (33)______ vehicles and energy-efficient appliances – affects the environment and everyone’s lives. What is the difference between energy conservation and energy efficiency? Energy efficiency is using (34)______ that requires less energy to perform the same function. Using a compact (35) ________ light bulb that requires less energy instead of using an incandescent bulb to produce the same amount of light is an (36)____ of energy efficiency. Energy conservation is any behavior that results in the use of (37)_____ energy. Turning the lights off when leaving the room and (38)______ aluminum cans are both ways of conserving energy.
34___________
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Lời giải:
Báo saiGiải thích: 34. a. chương trình b. công nghệ c. phương pháp d. hệ thống
Xét nghĩa ta chọn B
Tạm dịch: Hiệu quả năng lượng là sử dụng công nghệ cần ít năng lượng hơn để thực hiện cùng một chức năng.