Mercury complete its orbit around the sun in only ______.
举一反三
- Which planet is the closest planet to the sun, Mercury, Mars, Venus or Jupiter
- According to Newton's principle ______. A: the force of gravity keeps planets orbiting around the sun rather than flying off B: the sun is the most massive object, making up 99.8 percent of the mass of the solar system C: the amount of mass determine how fast the objects travel as they orbit each other D: Pluto receives the least force of gravity from the sun of all the planets in the solar system
- The teacher said that the earth（ ）around the sun yesterday.
- The truth the earth turns around the sun is known to all.
- Scientists managed to _____ a satellite in orbit around the planet Venus. A: laundry B: set C: launch D: set out