1, knowledge card answer: a.

2. Answers to after-school exercises: AB, ABCD, BC, D, D, ABCD.

The learning process of the third phase of Youth University in 2023

1, open the mobile phone WeChat to follow the official account of Qingxue WeChat, enter the full version of Qingxue online theme group class, click on the third issue of 2023 and select provinces and cities to enter the study; Or browse to the computer version of Youth University, and then click on the third study.

2. Click the [Start Learning] button after entering the third issue of Youth University in 2023, and then watch the video learning. The "knowledge card" that pops up in the middle needs to answer questions, and then click the [Continue Listening] button in the lower right corner.

3. After completing the third phase of study in 2023, it is suggested to share it with friends and let them study together. Finally, remember to click the [After-class Exercise] button to do six exercises.