What is the operation of "charging V at a high price, 100 yuan per day, daily settlement"?
A high price of V, 100 yuan per day, daily settlement "....
The Jiaolong suddenly lost contact while diving into the depths of 7000, but was it because the divers were catching sea cucumbers?
On June 24, 2012, the Jiaolong successfully sank to a depth of 7020 meters in the Mariana Trench, setting a Chinese record for manned depth. However, the Chinese people are not satisfied with the 7000 meter mark and still need to pursue victory...
Another historical breakthrough, China's space station conducts a "burning" experiment, and foreign media laments that the United States lost
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