B: It was fun.
A:
B: I went to the moon.
A:
B: I went there by spaceship.
A:
B: Yes, I did. And I see rabbit and three trees, too.
A: What did you do there?
B:
A: What a tall story!
B: Haha, Actually, It was just a dream.
A: Oops!
A.How did you get there? |
B.I took lots of pictures and play with Chang’e. |
C.How was your holiday? |
D.Where did you go? |
E.Did you see Chang’e? |
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