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How Can We Help the Disabled People(残疾人)?
Disabled people need our help. Some of them can’t walk or see. For example，a man on the wheelchair(轮椅) may find it hard to get onto the second floor，or a blind man may fail to cross the street without help. We can help them to push their wheelchairs，or help them to cross the street. We should help the disabled people as possible as we can.
1．Disabled people don’t need our help. （2．Some disabled people can’t see. （
3．Some disabled people can’t walk. （
4．A blind man may fail to cross the street without help. （
5．We should help the disabled people. （
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
