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 can download just the transcript through the World wide web portal. Click Recordings from the still left menu, locate the recording and click about the download icon. You'll get the next selections: 有时我们会面临幸福二选一的情景，两个... https://smokesdelight.com/