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Amy:
Sarah: Haha. They’re eating lunch! They’re so cute.
Amy: Oh, yes.
Sarah: What’s the little tiger doing?
Amy:
Sarah:
Amy: Yes! Look there!
| A．The monkeys are eating bananas. |
| B．What are they doing? |
| C．It’s playing with its father. |
| D．Do you see the monkeys? |
| E．They like bamboo. |
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
