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Mom: Ben. It’s 7:30.
Ben: Mom!
Mom: Let me help you.
Ben: No, it isn’t. It’s my sister’s.
Mom: Is it under the chair?
Ben:
Mom:
Ben: Oh! It’s mine. Thank you, Mom.
| A．It’s time to go to school. |
| B．Is this your school shirt? |
| C．No, it’s not under the chair. |
| D．Look, Ben! Whose shirt is this? |
| E．What time is it? |
| F．Where is my school shirt? |
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
