填空题
- A. the icebox
- B. the ice
- C. scientific answers
- D. the experiment
- E. the world
- F. water
填空题
When your child asks you questions, you should give her 1.
填空题
We set up experiments to test our ideas about 1.
填空题
In the experiment, one end of the string was attached to 1.
填空题
The experiment shows that salt changes the behaviour of 1.