Jiejie is a little green bird. She lives in a tree. One day, she wasn’t at home. She played with her friends in the park. A boy came to the tree and cut (砍) it down. When Jiejie came back, she couldn’t find her home. “Where is my home?” She cried.
1.What colour is the bird? ( )A.Red. | B.Green. | C.Black. |
A.In a tree. | B.In a park. | C.In the sky. |
A.Jiejie. | B.A boy. | C.An old woman. |
A.Yes, she could. | B.Yes, she did. | C.No, she couldn’t. |
A.We shouldn’t cut trees. |
B.We shouldn’t waste water. |
C.We shouldn’t litter. |
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同类型试题
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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
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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
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