• 2022-05-30
    Spring ______ is a vital part of the agricultural year, when crops
    need large amounts of water.
    A: irrigation
    B: spouse
    C: pact
    D: cultivation
  • A

    内容

    • 0

      Which of the following best describes monoculture? A: creating new strategies of disease resistant crops B: letting agricultural land go fallow C: tilling the land once over many years D: organic farming E: growing a single crop over a large area, year after year

    • 1

      ( ) were necessary to carry water to outlying farms and villages as well as to maintain even saturation of crops near the river. A: irrigation canals B: rivers C: caves D: lakes

    • 2

      Which of the following is not a primary product from insect farms? A: Insect grease as fuel material B: Insect protein as animal feed C: Feed residue as plant fertilizer D: Waste water for agricultural irrigation

    • 3

      He decided not to swim in cold water again when hecame out of water.

    • 4

      The best irrigation water is river water, pond water and lake water A: 正确 B: 错误