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| A. We get Hongbao from my grandma and grandpa. B. We buy new clothes. C. We get some present in the socks. D. We have a big family dinner. E. We have peanuts and sweets. F. We eat dumplings. G. People make a tree with presents. H. We sing songs. I. We say, “Trick and treat.” J. We give apples to friends and eat apples at night. K. We make pumpkin lantern (南瓜灯). L. We eat turkey (火鸡). |
1．At Christmas
2．At the Spring Festival
3．On Halloween
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
