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At the Spring Festival, people buy flowers and put them in their houses. They have a big family reunion dinner. And the children get red packets from the older people. In the evening, they light firecrackers. During the day, they watch lion dance. They have great fun. When friends meet, they say “Happy New Year!” to each other.
1．People buy clothes at the Spring Festival.2．People have a big family reunion dinner at the Spring Festival.
3．Children give red packets to older people.
4．Children watch lion dance in the evening and have great fun.
5．People say “Happy New Year!” when they meet their friends.
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
