How many tons of carbon were released in 2010?
A: 27 gigatons
B: 37 gigatons
C: 31 gigatons
D: 17 gigatons
A: 27 gigatons
B: 37 gigatons
C: 31 gigatons
D: 17 gigatons
举一反三
- According to the passage, if there were 500 tons of uranium ore, how many tons of useful uranium-235 could be extracted A: 1 kilogram. B: 10 kilogram. C: 50 kilogram. D: 500 kilogram.
- How many key areas for development has the Chinese government identified? A: 7 B: 17 C: 27
- How many tons does the cargo 737 carry? （）
- According to the Bible story , how many apostles were in the last supper? A: 17 B: 13 C: 18 D: 12
- If your vessel bums 8 tons of fuel per hour at 15 knots, how many tons per hour will it burn at 18 knots?（） A: 1382 tons B: 1561 tons C: 1600 tons D: 1637 to