Flammable ice is a nickname for ?
A. methane hydrate
B. CO2
C. Oxygen
D. Hydrogen
China has discovered promising reserves of "flammable ice" in areas like the Qinghai-Tibet plateau, as well as under Sea.
A. the North China
B. the South China
C. the East China
D. the West China
The tool, an ultra-deep-sea semi-submersible drilling rig called One, was built by a company headquartered in southern China's Shenzhen City.
A. Red Whale
Blue Dolphin
C. Blue Whale
D. Red Dolphin
In June , China granted 5G licenses for commercial use, signaling a new era in the country's telecommunication industry.
A. 2018
B. 2019
C. 2020
D. 2021