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Many students in the US always take the school bus to school every day. And there are many rules.
◆Arrive(到达) at the bus station early.
◆Wait for the bus at the bus station.
◆Don't play around the bus station.
◆Don't run here and there at the bus station.
◆Don't get off the bus if it doesn't stop.
These rules are good for students. Remember them and don't break(破坏) them. Then you can keep yourself safe.
1．The students in the US all take the school bus to school.2．Students can run near the bus station.
3．Students have to sit on their seats when the bus is going.
4．Students on the bus can get off the bus at any time.
5．It can be dangerous(危险的) if students don't keep the school bus 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
