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One day, Mr. and Mrs. Smith go shopping by car. They stop their car near a store. They buy many things. And they want to put the things into the car. But Mr. Smith can’t open the door of the car. They ask a policeman to help them. The policeman is very friendly to help them. Just then a man comes up and shouts, “What are you doing with my car?”
Mr. and Mrs. Smith look at the car’s number and they are frozen there. It isn’t their car.
1．Mr. and Mrs. Smith go shopping in a car. （_____）
2．They buy many things. （_____）
3．Mr. Smith opens the door of the car. （_____）
4．A policeman helps Mr. Smith open the door. （_____）
5．This isn’t their car. （_____）
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
