①鹅毛大雪 ②微风习习 ③电闪雷鸣 ④云开雾散
(1)到了中午,(______),远处的山渐渐清晰了。
(2)窗外下起了(______),到处一片白色。
(3)清晨的小河边,(______)河岸上有三五成群的老人们在晨练。
(4)轰隆隆,外面(______),我害怕得躲在屋子里不敢出去。
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