Cheng Jie and Oliver are good friends. Oliver’s mother is a head teacher. Oliver’s father is a pilot, and he goes to work by car. Oliver is going to be a businessman. Cheng Jie’s mother works near the sea, and she is a fisherwoman. Cheng Jie’s father is a policeman, and he goes to work by bike. Cheng Jie is going to be a head teacher.
1.Cheng Jie and Oliver are sister and brother.2.Oliver’s father is a pilot.
3.Cheng Jie’s mother is a fisherwoman.
4.Oliver is going to be a policeman.
5.Cheng Jie’s father goes to work by car.
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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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