One day Mr and Mrs White went shopping by car. They stopped their car near a store. They bought a lot of things and they wanted to put the things in the car. But Mr White couldn’t open the door of the car, so they asked a policeman to help them. The policeman was very friendly to help them. Just then a man came up and shouted: “What are you doing with my car?” Mr and Mrs White took a look at the car‘s number and they were frozen there. It wasn’t their car.
( )1. Mr and Mrs White went shopping by bike.
( )2. They bought many things.
( )3. Mr White could open the door of the car.
( )4. The policeman was very friendly to help them.
( )5.The car wasn’t theirs
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