This is my friend. His name is Tim. He is ten years old. He has short black hair. He is friendly and quiet. He likes English and maths. His schoolbag is blue. His shoes are black and white. He often plays football after school.
1.Tim is _________ years old. ( )A.9 | B.10 | C.11 |
A.Short. | B.Brown. | C.Black. |
A.Yes, he is. | B.We don’t know. | C.No, he isn’t. |
A.Chinese | B.English | C.stories |
A.books | B.schoolbag | C.shoes |
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