司令员彭德怀nǐ dìng(______)的电报告知毛泽东,他bēn fù(______)朝鲜战场的儿子已光荣牺牲。他回忆起送爱子去农村duàn liàn(______)的情景,按着眉头,qíng bù zì jīn(________)地喃喃着,目光中流露出无限juàn niàn(______)。最终,他决定不搞tè shū(______),让儿子永留朝鲜。
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