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Our school has some rules. We must (必须) wear school uniforms (校服) in the school every day. We must wear sneakers (运动鞋) in PE classes. The boys can’t have long hair. We should not be late for school. We should not talk in the school library. If we have any questions to ask in class, we should put up our hands first. We should speak loudly when we answer the teachers’ questions. We can’t fight against others. We should always obey (服从) the rules.
1．We must wear school uniforms at home.2．The boys can’t have long hair.
3．You can be late for school.
4．We can fight against others.
5．We should always obey the school rules.
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
