四、阅读理解。
新素材 科普知识 The giant panda, the national treasure of China, is not only a rare species but also a symbol of ecological conservation. In recent years, China has made great progress in protecting and restoring the giant panda population. Let's take a look.
Wild panda population growth
The number of wild pandas has increased from about 1,100 in the 1980s to nearly 1,900, based on the results of the fourth national panda survey.
Habitat growth
Since the 1960s, China has created 67 nature parks mainly to protect giant pandas and their homes. The area for pandas has grown from 1.39 million hectares to 2.58 million hectares.
Returning pandas to the wild
China started a study to release giant pandas back into the wild in 2003 and has set free 12 pandas after special training. Now, 10 of them are still living in the wild.
International panda protection
China has done joint research on protecting giant pandas with 26 organizations in 20 countries and has successfully raised 41 groups of pandas and 68 baby pandas during this time. The number of pandas living in zoos around the world has reached 728.
These achievements are not only a victory for giant pandas but also an important step forward in global environmental protection. Through the combined efforts of China and the international community, the future of giant pandas looks brighter.
1. 新考法 学科融合 How many wild pandas have increased so far in the wild?
A. About 800.
B. About 1,900.
C. About 67.
D. About 728.
2. What does the underlined word "joint" mean?
A. 共同的
B. 关节
C. 连带的
D. 结合处
3. What can we infer from the last paragraph?
A. China has set an example for the global wildlife protection.
B. Pandas can now get used to the wild.
C. More and more pandas will be sent to foreign countries.
D. Pandas' living conditions will be brighter in the future.

A ; A ; D