Example: It has a round face with numbers and two hands. It can tell us the time. clock
1.It's a kind of drinks. Chinese people like to drink it with boiling water. t
2.It is a kind of food. There are two pieces of bread with vegetables and meat. h
3.It is the fourth day of a week. It is after Tuesday and before Thursday. W
4.It is a plant with leaves on it. It can live for a long time. t
5.It has two wheels (轮子). You can sit on it and use your feet to move it. b
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