Hello, my name’s Tony. I’m a student of Grade Four. I have a lovely 1. (brother / sister / father). He’s only four. This is our room. It’s big. We can 2. (read / fly / clean) books in the room. This is a 3. (toy car / bike / bag). It’s my favourite(最喜欢的) toy. It can 4. (run / swim / fly) fast. There is a football near(在……附近) my bed. I like 5. (playing / play / plays) football with my brother. We are happy.
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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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