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Hello, I'm Polly. I'm a bird. My eyes are black. My mouth is red. My head is yellow. My body is green. Today is my birthday. I'm two years old. Kitty is my friend. It’s a cat. It's brown. It’s three years old. We are happy.
1．I'm ____________ years old. ( )| A．2 | B．3 | C．4 |
| A．black | B．red | C．blue |
| A．head | B．eyes | C．body |
| A．yellow | B．brown | C．green |
A． | B． | C． |
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
