公鸡和鸭子比本领
公鸡和鸭子都说自己的本领大。他们就比赛跑步,公鸡连飞带跑,一路领先。鸭子一摇一摆,怎么也赶不上。公鸡得意地对鸭子喊:“还是我的本领大吧!”鸭子摇摇头,不肯认输。
他们又比赛游泳,_______________________________________________
___________________________________________________________________
___________________________________________________________________

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

