§ Predict what will happen when the following pairs of solutions are mixed. If there are reactions occurring, write down the reaction equations as well as the net ionic equations if applied. § KNO 3 ( aq ) and BaCl 2 ( aq )
【简答题】For this part, you are allowed 30 minutes to write a composition on the topic College English Teaching in China according to the following outline(given in Chinese). Your composition should be no less...