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Miss Wang: Hello, boys and girls.
Bob: Hello, everyone.
David: Hello, Bob. I’m David.
Bob: Thank you, David. What’s this?
David: It’s a CD. It’s for our English class.
Bob:
David: It’s a robot. We make (制造) it .
Bob: It’s cool!
David: It’s Susan’s doll. She likes it.
Bob:
| A．Your T-shirt is nice. |
| B．What’s that? |
| C．This is our new friend, Bob. |
| D．What about this doll? |
| E．I like (喜欢) our classroom. |
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
