(1)黄hūn( )时分,我拿出zhǐ( )和笔铺在桌子上,准备给远在新加pō( )的dù( )伯伯写一fēnɡ( )信,送去一声tián( )美的问hòu( )。
(2)清chén( ),迎着càn( )烂的朝霞,我来到村后的小溪旁sàn( )步。hū( )然,一只小青蛙tiào( )到我面前,我连忙tínɡ( )住脚步,jìnɡ jìnɡ( )地观察它。

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

