一间房子,一个屋顶四面墙,先刷屋顶后shuā qiáng(____)。屋顶尤其难刷,蘸了稀溜溜粉浆的板刷往上一举,谁能一滴不掉?一掉准掉在身上。可刷子李一举刷子,就像没有zhàn jiāng(____)。但刷子划过屋顶,立时yún yún shí shí(____)一道白,白得透亮,白得qīng shuǎng(____)。
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