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Mike: Good afternoon.
John: Nice to meet you, Ann.
Mike:
John: Let’s go to the zoo.
Mike &. John:
They are at the zoo.
John: What’s that?
Ann: It’s a panda.
Mike: It’s lovely. I like it.
John: Wow, ducks.
Ann:
Mike: Six.
| A．Nice to meet you, too. |
| B．This is Ann. |
| C．OK. |
| D．How many ducks? |
| E．Good afternoon, Mike. |
| F．How old are you? |
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
