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Hello, I’m Sarah. I’m 11 years old. I am from England. But I am in China with my family now. My brother and I are students. We often go to school on foot. Sometimes we go by bike. My father and mother are teachers. They go to work by car together. I know the traffic rules. In China, people drive on the right side of the road. But in England, people drive on the left side of the road.
1．Sarah is ten years old.2．Sarah often goes to school by bike.
3．Sarah’ mother goes to work by car.
4．In China, people drive on the left side of the road.
5．In England, people drive on the left side of the road.
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
