(1)春ɡū nianɡ来了,孩子们chōnɡ出家门去xún找春天。
(2)bì lǜ的草地上,一棵liǚ树吐出嫩芽,真美啊!
(3)yuán来,yóu dì yuán送来的这份lǐ物是哥哥从农村老家寄来的。
(4)妈妈常常对我说:“要xiū xi好,要zhù意保重身体。”
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