这可以理解为因为氧化作用失去电子后，剩下电子收到原子核的吸引作用增强，电子结合能增强；反之，还原作用得到电子，所有电子收到的吸引减弱，结合能减弱。 You could download just the transcript from the World-wide-web portal. Click on Recordings from your still left menu, Find the recording and click on to the down load icon. You will get the following options: Thanks for posting your questio... https://buypetsonline24563.blog-a-story.com/18788315/facts-about-smokes-delight-revealed