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May:
Ann: When’s your brother’s birthday?
May:
Ann:
May: Yes, it is.
Ann: It’s October 13th.
May: Oh, today is my brother’s birthday.
Ann: Happy birthday to him. Do you have a present for him?
May:
Ann: Let me see. Oh, it’s so nice.
| A．His birthday is after mine. |
| B．What’s the date today? |
| C．Yes, I have a toy plane for him. |
| D．It’s September 17th. |
| E．Is it in October? |
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
