中国大学MOOC: The _______ is the outermost layer of Mars.
举一反三
- The _______ is the outermost layer of Mars. A: crust B: mantle C: core D: center
- The _______ is the outermost layer of Mars. A: crust B: mantle C: core D: center
- 中国大学MOOC: ______ and ______ are the two moons of Mars.
- Earth's outermost layer, consisting of the crust and upper mantle, is called the lithosphere.
- 中国大学MOOC: Which tableware should be put the outermost of setting?