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| cards busy songs Australia China Christmas |
I’m Nina. I’m from Canada. I know Spring Festival is the biggest (最盛大的) festival in 
. Do you know our biggest festival? Yes. It’s Christmas. is on December 25. We have Christmas vacations. We send Christmas to our friends before the festival. We usually decorate a beautiful Christmas tree in the living room. On Christmas day, we say “Merry Christmas” to each other. We sing Christmas .We get presents from Santa. We have a big dinner. We are 
and happy.
In Canada, Christmas is a “cold” festival. But in , it’s a “hot” festival. Why? You can find the answer by yourselves!
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
