Which of the following are the steps required to establish an applied scientific theory?
A: the main work that has to be done
B: the recommendation has to be implemented
C: determine basic values for his model
D: All of the above
A: the main work that has to be done
B: the recommendation has to be implemented
C: determine basic values for his model
D: All of the above
举一反三
- 10. With his hard work, John ____ the basic knowledge of computer.A. has caught B. has acquired C. has required D. has acknowledged A: A. has caught B: B. has acquired C: C. has required D: D. has acknowledged
- Which of the following work has she ever done? A: Sex worker. B: Night club dancer. C: All the above. D: None of the above.
- With a year's hard work, he ________ basic knowledge of Engligh. A: has caught B: has acquired C: has required D: has acknowledged
- All things , he has done his best.
- I am sure Mary has been here and （） A: did what required her B: has done what required her C: has done what was required of her D: did what has been required of her