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The Spring Festival is a big festival in China. Before the day of the festival, people(人们) do shopping and cleaning. 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. They light firecrackers and have great fun. When people meet, they say: “Happy Spring Festival!” to each other.
1．Before the day of the festival, people do cooking.2．People buy flowers at the Spring Festival.
3．They have a big family reunion dinner.
4．The children get red packets from their friends.
5．They say “Happy Birthday!” to each other.
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
