• 2021-04-14
    The case ________ using animals in research: a) Animals ________ a lot during the experiments. b) Much of the research is ________. c) Animals have ________ as humans do.
  • 第一空: against 第二空: suffer 第三空: unnecessary 第四空: the same rights

    内容

    • 0

      Is it really necessary to __________ experiments on animals?

    • 1

      We want to _____________how animals use tools. A: survey B: investigate C: research D: inquiry

    • 2

      C. The head of the zoo doesn’t believe that animals have the same emotions as humans’.

    • 3

      ____ men have learned much from the behavior of animals is hardly new.

    • 4

      A biologist must have a lot of knowledge about the life and ______ (behave) of both plants and animals