1.( )Good morning, Sam
A.早上好,艾米。
2.( )Good morning, Amy
B.你好吗?
3.( )How are you?
C.早上好,萨姆。
4.( )I’m fine.
D.谢谢你。
5.( )Thank you.
E.我很好。
6.( )Hello, I’m Xiaohong.
F.你好,我是小伟。
7.( )Hi, I’m Xiaowei
G.再见,小伟。
8.( )Goodbye, Xiaowei H. 你好,我是小红。
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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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