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Ⅰ、1、protect
2、conditions
3、achieve
4、succeed
5、include
6、nature
7、force
8、square
9、population
10、meters
Ⅱ、1、higher
2、the biggest
3、the deepest
4、the longest
5、countries
6、the most famous
7、the most popular
8、southwestern
9、themselves
10、trying
Ⅲ、1、most dangerous sport
2、One of the most popular places
3、The first people to reach the top
4、risk their lives
5、in the face of difficulties
6、never give up  | 
信息发布者：陈芳老师
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