龙一鸣:
爸爸:好,你问吧。
龙一鸣:
爸爸:那时,我对收音机里的声音很好奇,以为收音机里有小人儿在说话、唱歌,便把收音机后盖撬开了,结果没有看见什么小人儿,还把它弄坏了。那时候的我,真傻!
龙一鸣:不,说明您有一颗好奇心。那您下课后最喜欢玩什么游戏呢?
爸爸:
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