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My name is Mary, I am a student. I study in Bianqiao Primary school. From Monday to Friday, I get up at 6:00 and go to school at 7:00. Usually I go to school by bike, but sometimes I go on foot with my sister. We know the traffic rules. We must stop at a red light. At the green light, we can cross the street.
1．Mary gets up at 7:00. （2．Mary goes to school at 6:00. （
3．Usually Mary goes to school on foot. （
4．At the green light, they can cross the street. （
5．Mary doesn’t know the traffic rules . （
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
