(1)下雨了,喜鹊妈妈用宽大的翅膀遮住小喜鹊,嘴里不停地说着:“鹊!鹊!鹊鹊!”
我知道,喜鹊妈妈是在说:
(2)小喜鹊长大了,从外面捉了虫子喂给喜鹊妈妈吃,对妈妈说:“鹊!鹊!鹊鹊鹊!
我知道,小喜鹊是在说:
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