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Look at this boy. He is my friend. His name is Liu Hao. He is a student. He is ten years old. He is short. His eyes are black. His hair is black, too. His father is a policeman. He is tall. His mother is a teacher. She is tall, too. They are a happy family.
1．Liu Hao is _________ years old. ( )| A．six | B．eight | C．ten |
| A．blue | B．yellow | C．black |
| A．policeman | B．teacher | C．bus driver |
| A．young | B．short | C．tall |
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
