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Mom: Tom, let’s go to the zoo.
Tom: Yeah!
Mom: Look! What are these?
Tom:
Mom:
Tom: Let’s count! One, two... ten. There are ten.
Mom: Oh, so many.
Tom: I’m hungry, mum.
Mom: It’s twelve o’clock.
Tom: OK!
Mom: Rice and chicken.
| A．What time is it? |
| B．It’s time for lunch. |
| C．They’re elephants. |
| D．How many elephants can you see? |
| E．What’s for lunch? |
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
