• 2021-04-14
    Sea water is not directly used as a coolant for engines because of its ().
  • B

    内容

    • 0

      Actually the water in Aral Sea isn’t salt.

    • 1

      According to the first two paragraphs,________. A: the use of water is a completely new concept B: the sea has long been used as a way of power C: water is a source of energy far more economical than any other energies D: water, if properly handled, may present a promising solution to energy crisis

    • 2

      This island of Kahoolawe has been selected because ______. A: it is without fresh water B: of its rugged beauty C: it is presently uninhabited D: of the presence of ducks

    • 3

      These engines ______ by hand, now they ______ by electricity. A: used to be started; are started B: used to start; are started C: used to be started; start D: used to start; start

    • 4

      You have your water glass directly your knife.