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Hello, I am Mike. I’m ten. I have a nice photo（照片）. Look! This is Jack. He is my brother. He is seven. This is Alice. She’s my sister. She is ten. Who is that girl? That’s Yang Ling. She and Alice are the same age（相同的年龄）. She’s Alice’s good friend. We love and help each other（互相）.
1．How old is Jack? ( )| A．Seven. | B．Eight. | C．Ten. |
| A．Alice. | B．Tim. | C．Helen. |
| A．Ten. | B．Eight. | C．Nine. |
| A．Ten. | B．Eight. | C．Nine. |
| A．sister | B．cousin | C．friend |
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
