It is believed that___work means moving a body through a distance by a force.
A: having done
B: done
C: being done
D: doing
A: having done
B: done
C: being done
D: doing
举一反三
- With the work _________________, they went out to play. A: doing B: be done C: done D: being done
- The ratio of the work ______ by the machine to the work _____ on it is called the efficiency of the machine. A: to do ...to do B: doing....doing C: having done ... having done D: done ...done
- Spend your time just on the things you find . A: worth doing B: worth being done C: worth done D: being worth done
- Homework____________on time will lead to better grades.A. done B. having done C)) be done D. to A: having done B: done C: be done D: to have been done
- Spend your time just on the things you find ______.( ) A: being worth done B: them worth doing C: worth doing D: worth being done