☆有朋自远方来,不亦乐乎
☆四海之内,皆兄弟也
☆君子之交淡如水
☆士为知己者
☆死海内存知己,天涯若比邻
☆酒逢知己千杯少
☆相识满天下,知音能几人
☆人生得一知己足矣,斯世当以同怀视之
莫逆之交管(仲)鲍(叔牙)之交刎颈之交忘年之交患难之交
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