阅读理解，回答问题。
Mrs. Jackson is an American doctor. She is in China now. She works in a children's hospital in Chongqing.
She is also learning Chinese medicine (中医) there. She likes Chinese medicine very much. She loves to work
for children. She works hard in the day and reads English books on Chinese medicine at night. She learns
Chinese from the Chinese doctors and her Chinese friends. Now she can speak some Chinese. She can read
some Chinese, too.
1. Where is Mrs. Jackson from ?
2. Where does Mrs. Jackson work ?
3. What is Mrs. Jackson learning now ?
4. What does Mrs. Jackson do at night ?
5. How does she learn Chinese ?