Love can make those fortunate human beings ______.
举一反三
- According to the passage, dogs and cats ______ . A: as well as human beings cannot see some colours B: have fewer cones than human beings C: have less rods than human beings D: can see colours as well as human beings
- Why can many animals ran faster than human beings?
- Language can be defined as a tool by which human beings ________ with one another.
- The passage implies that human beings differ from computers in that human beings（） A: make fewer errors B: do not have to be programmed C: work more quickly D: understand their instructions
- If medical researches on animals are strictly limited, it will be hard for human beings to make medical progress.