Dick: Hi, Sue.
Sue: Oh, Dick. Where are you now?
Dick:
Sue: Park? Super! What are your parents doing?
Dick:
Sue: What about your sister?
Dick: She is flying a kite.
Sue: Wow!
Dick: Of course. Some children are boating (划船) on the lake.
Sue: It sounds great.
Dick: Sure.
Sue:
Dick: Thank you. Bye.
A.Is there a lake in the park? |
B.Can you take some photos for me? |
C.They are playing table tennis. |
D.Have a good time! |
E.In the park with my family. |
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同类型试题
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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
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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
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