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A: Look! This is my new schoolbag.
B:
A: Thank you, Yang Ling. Oh, where's my rubber?
B：Don' t worry(别着急). Is it in your pencil case?
A:
B:
A: No. My rubber is green.
B: Look!
A: Yes. Thank you.
| A．That rubber is blue. |
| B．No, it isn't. |
| C．It's under the chair. |
| D．Is the rubber on that desk yours? |
| E．Oh, it's beautiful, Helen. |
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
