Before the drug is used on human beings, experts have to ______ dogs.
A: be experimented
B: experiment
C: experiment with
D: experiment on
A: be experimented
B: experiment
C: experiment with
D: experiment on
举一反三
- In designing an experiment, blocking is used A: to reduce variation B: to control the level of the experiment C: as a first step in randomization D: None of the above
- (13 Down) What must this experiment have the potential to do, to be a ______ (有效的) scientific experiment?
- 1. According to Dr. Ariely’s book, Predictably Irrational, what might be a weakness of human beings? (Para.4) A: His experiment shows that people just couldn’t bear to see their options vanish. B: His experiment shows that people always want to keep all the doors open. C: His experiment shows that people are fond of playing games. D: His experiment shows that people do not bother to bring with them the key to the door.
- A) Tony could not continue the experiment B) Tony finished the experiment last night. C) Tony thought the experiment was well done. D) Tony had expected the experiment to be easier.
- 中国大学MOOC: In designing an experiment, blocking is used