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Hello! My name is Jack. I'm six years old. I'm tall. My hair is black. And I'm a student. My sister is a student, too. She is five years old. My mother is a teacher. My father is a police-man. He is very tall. Today is his birthday. We have a birthday party. We are very happy today.
1．Jack is ________ years old. ( )| A．nine | B．six | C．five |
| A．brown | B．red | C．black |
| A．worker | B．policeman | C．teacher |
| A．tall | B．old | C．short |
| A．Jack's | B．Jack's father's | C．Jack's sister's |
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
