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| They often sleep. They are from China. Whose pandas are these? Can you see any pandas? Is the bamboo theirs? What are the monkeys doing? They are going for a walk in the forest. |
A: Welcome to the zoo. Let’s have a look!
B: OK!
A: They are climbing the trees.
B: Look! They are so fast.
A: You are right.
B: Yes, I can. Where are they from?
A:
B:
A: Yes. Pandas like bamboo very much.
B: What do the pandas often do?
A:
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
