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The moon is smaller than the earth. It is three hundred and eighty thousand kilometers away from us. In 1969, two Americans got to the moon by spaceship. They found no living things there. And there is no air or water there. It is too hot in the day and too cold at night,so nothing can live on the moon. Everything on the moon is much lighter. Walking on the moon is like jumping and flying,so we can jump higher on the moon than on the earth.
1．The moon is bigger than the earth.2．The moon is 380,000 kilometers away from the earth.
3．Everything is lighter on the moon than on the earth.
4．The moon is too cold in the day and too hot at night.
5．People can live on the moon.
同类型试题
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
