搜索
A. Thank you for providing a wonderful home for me!
B. Where are you going this winter?
C. Are there many trees in Hainan?
D. See you!
E. That is a warm place.
There was an old tree on the top of the mountain. Many birds built houses in it.
Tree: The winter is coming. 1．
Bird: I am going to Hainan. 2． I heard it is warm all year.
Tree: That’s a good idea! 3．
Bird: Yes! There are many trees and many kinds of fruits.
Tree: That’s a wonderful place! Good luck!
Bird: Thank you, Mr Tree. 4．
Tree: No big deal. Take care of yourself. 5．
Bird: See you!
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
