A. —Hi, Peter. Do you like grapes? —No, I don't. I like bananas. What about you? —I like grapes. B. —Hi, Gao Wei! Glad to see you again. —Hello, Kate! Nice to see you again. C. —Is this your coat? —Yes, it is. D. —Hi, Yang Ming. What's this? —Is it a chick? —No, it's a quail. —Oh, it's a quail. E. —Hi, Yang Ming! Who's that man? —That's my uncle. —Who's that woman? —That's my aunt. |
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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