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Kate: Hi, Jack.
Jack: This is my friend, Amy.
Kate:
Amy: Nice to meet you, too.
Kate: Where are you from, Amy?
Amy:
Kate:
Amy: She is my sister.
Kate: Let’s go to the zoo.
Amy:
Kate: Wow! Look at the giraffe.
Amy:
| A．It’s so tall. |
| B．Great. |
| C．I’m from the USA. |
| D．Who’s that girl? |
| E．It’s so short. |
| F．Nice to meet 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
