(1)不知怎的,老爷爷_______,医生叫他躺在床上好好儿________几天。
(2)只有凳脚儿不_______,搬动时,碰到_______,发出“咚咚咚”的响声。宁宁想了想,找出一些_______,把凳脚儿一只一只_______。
(3)我家的凳脚儿也_______,像宁宁一样_______,一样_______。
(4)三颗心都_______着老爷爷呢!
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