1.
①树叶 ②天气 ③一片片
2.
①采莲 ②鱼 ③江南
3.一寸光阴一寸金,
①寸金 ②寸光阴
4.(1)荷叶圆圆,他对青蛙说:“我是
(2)雪人大肚子一挺,他顽皮地说:“我就是
(3)草芽尖尖,他对小鸟说:“我是
(4)谷穗弯弯,他鞠着躬说:“我是
①春天 ②夏天 ③秋天 ④冬天
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