2020年2月,新型冠状病毒的防控形势越来越yán jùn(____)。医院里,医生护士们安慰着那些神情jīng huāng(____)的病人,在这疫情mǐn gǎn(____)时期,他们为了让病人早日康复而tōng xiāo(____)战斗着。望着这一幕幕感人的情景,我bù jīn(____)暗暗祈祷:愿疫情早日结束,让我们相约于làng màn(____)的春光吧!
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