【简答题】choose the words from the passage to fill in the blanks. I suggest you go on a _____ and take more exercise. I think it a good idea to _____ smoking in public places. She _____ her face under the jack...
【简答题】If you are planning an investigation, I suggest that you investigate the effects of temperature or the effects of the concentration of the reactants because these will allow you to choose a suitable r...