1. __gl__ 丑的;丑陋的 2. b__ck 背;背部
3. b__b__ 宝宝;婴儿 4. l__ter 后来;以后
5. i__t__朝;向;到……里面 6. r__v__r 河;江
7. du__ __ 鸭子 8. aw__y 去别处;朝另一个方向
9. sw__n 天鹅 10. q__ __ck (鸭叫声) 嘎嘎

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

