A.立春是古代传统的祭农节日,这一天人们给小孩佩戴“春鸡”,寓意茁壮成长,吉祥如意。 |
B.重阳节有登高的习俗,取积极向上、团结奋进的吉祥之意。 |
C.爷爷七十大寿时,家人做了长寿面给爷爷祝寿,祝福爷爷福寿绵长。 |
D.过年奶奶包饺子时,在饺子中包进了一枚硬币,并告诉大家:“饺子下锅,象征着财源滚滚。” |
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