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Amy: Nice to meet you.
John: Nice to meet you, too.
Amy: Mike, we have a new classroom.
Mike:
Amy: Yes.
John:
Amy: We have one TV, eight lights, many desks and chairs.
John: Wow!
Amy: But it's not clean.
Mike:
Amy& John: OK!
John: I'm tall. Let me clean the blackboard.
Amy:
Miss White: You are helpful!
| A．Really? |
| B．It's so big. |
| C．What's in the classroom? |
| D．Let’s clean the classroom. |
| E．Let me clean the window. |
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
