(
A. The Dragon Boat Festival. B. The Double Ninth Festival. C. The Lantern Festival.
(
A. No, he doesn't. B. Yes, he does. C. No. He likes English festivals.
(
A. It's on the twenty-first of October. B. It's on the twenty-fifth of October. C. It's on the twenty-eighth of October.
(
A. They eat moon cakes.
B. They visit their parents and grandparents.
C. They watch lanterns at night and eat yuanxiao.
(
A. Two. B. Three. C. Four.
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