是的,当年用自己的__________和__________保卫过第一个__________的战士们,谁不记得____________________呢?用它__________;用它__________;用它__________,当__________;用它__________;在黄洋界和八面山上,还用它____________________,使多少白匪__________,__________。
从远处看,__________,__________,__________。到近处看,有的__________,好似当年山头的__________;有的__________,好似__________;有的看来出世还不久,却也__________,别有一番__________。
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