(1)一年又一年,春种秋收,循环往复,老奶奶从不沮丧怀疑,依然满怀信心地试验下去……(_____)
(2)黎明之前,海面上吹来了一阵阵温暖的微风,海水哗啦哗啦地冲击着小天鹅白色的胸脯。(_____)
(3)我这才注意起山茶花骨朵来。果真特别!(_____)
(4)直到那群天鹅消失了,这只小天鹅才闭上了眼睛。(____)
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