• 2021-04-14
    In winter, some people energy by lowing the heat at night.
  • conserve

    内容

    • 0

      中国大学MOOC: Some people become (4) in winter, when the days are dark and most people spend less time in the open air.

    • 1

      Heat energy and energy are the middle processes of energy transformation in an electric power plant. (chemical / mechanical)

    • 2

      The author disagrees with Dr.Burton because A: few people can wake up feeling fresh and alert. B: some people still feel tired with enough sleep. C: some people still feel sleepy with enough sleep. D: some people go to bed very late at night.

    • 3

      It was ______ cold winter night and the moon was shining brightly across ______ night sky.

    • 4

      It happened on ________ winter night. A: / B: the C: an D: a