This passage mainly talks about ()
A: the origin of the earth
B: the origin of the ocean
C: the history of the earth
D: the forming of the earth’s crust
A: the origin of the earth
B: the origin of the ocean
C: the history of the earth
D: the forming of the earth’s crust
B
举一反三
- The ocean ______ 70 percent of the Earth’s surface, but contains about 20 percent of the Earth’s total estimated species. A: takes up B: fixes up C: stirs up D: patches up
- Carl Sagan suggests that modem man ______. A: is very confused about the origin of the Earth B: might possibly reach life outside the C: believes it is possible to step off the Earth D: is historically incapable of exploring the universe
- Earth's outermost layer, consisting of the crust and upper mantle, is called the lithosphere.
- According to Laozi, Dao is the mother of heaven and earth, the origin of all things. ( )
- _____ is covered with heavy snow. A: The earth’s surface B: The surface of earth C: The surface earth D: The earth surface
内容
- 0
Of all the elements in the Earth's crust, oxygen is known to be the more common.（） A: Of all B: elements C: to be D: more
- 1
What is the origin of the conception of essence in the ancietn Chinese phiolosophy? A: gas B: breath C: cloud D: water and earth
- 2
The element party held the view that the origin of the world was ________, such as fire, earth, gas, water, seed and atom and changeable.
- 3
The earth is about ______ as the moon.
- 4
The earth is about ______ as the moon.