1. ---什么使得空气变脏?
--- 汽车的尾气使空气变脏。
--- What makes the air __________?
--- cars makes the air .
2. --- 什么使街道变得乱七八糟和肮脏的?
--- 垃圾使得街道变得又乱又脏。
--- What makes the streets and ?
--- makes the streets and .
3. 我们可以把垃圾放进垃圾桶里。
We can rubbish the .
4. 你把垃圾扔到地上了吗?
Do you rubbish the ?
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